Abstract: A cyclone separating apparatus for a vacuum cleaner includes a first cyclone with an air entrance disposed on a lower portion of the first cyclone and an air exit disposed at an upper portion of the first cyclone; a first contaminants chamber substantially enclosing the first cyclone to collect contaminants discharged from the first cyclone; a plurality of second cyclones above the first cyclone, the plurality of second cyclones being substantially perpendicular to a center axis of the first cyclone; and a second contaminants chamber disposed outside the first contaminants chamber to collect contaminants discharged from the plurality of second cyclones.

Abstract: A dust-collecting apparatus of a vacuum cleaner includes a first dust-collecting unit, a second dust-collecting unit, and a dust receptacle. The second dust-collecting unit is adapted to be mounted to one side of the first dust-collecting unit. The dust receptacle is adapted to be mounted on a lower part of both the first and the second dust-collecting units, and the dust receptacle is adapted to store dust separated by the first and the second dust-collecting units. The first and second dust-collecting units are arranged so that air discharged from the first dust-collecting unit enters the second dust-collecting unit.

Abstract: A cyclone dust-separating apparatus is disclosed. The dust-separating apparatus includes a cyclone unit having an air inlet and an air outlet so as to remove dust or dirt from air, and a dust bin joined to a bottom end of the cyclone unit so as to store the dust or dirt separated by the cyclone unit. The cyclone unit is installed in such a manner that a longitudinal axis thereof is substantially horizontally arranged. The dust bin is installed in such a manner that a longitudinal axis thereof is substantially perpendicular to the longitudinal axis of the cyclone unit. The dust bin has an air outflow passage connected with the air outlet, so that air discharged from the cyclone unit passes through the dust bin and then discharges in a bottom end direction of the dust bin.