Abstract: A specially arranged, two compartment, four stage industrial dust collector is provided which is efficient, effective, and economical. The first compartment has a lower chamber which contains a cyclone and an upper chamber which contains a downstream spiral baffle or rings to remove larger particulates of dust. The second compartment has an annular upper chamber with a special arrangement of overhead nozzles for downward air flow to remove particulates of dust by kinetic energy and a lower chamber containing filters for lateral and upward air flow to filter the remaining particulates of dust.