Abstract: A hand-held vacuum cleaner includes a main body including a casing and a motor fan assembly arranged in the casing. A dirt container is rotatably connected to the main body and has a hollow barrel communicating with the casing. A nozzle has a first end fixed to the barrel and a second opposite end defining an air inlet communicating with the barrel to allow air to be sucked into the air inlet. A connection assembly includes a first connection member, a second connection member and multiple rolling members. The first connection member is fixed to the main body and has a first surface. The second connection member is connected to one end of the barrel and rotatably connected to the first connection member. The second connection member has a second surface facing the first surface. The first surface defines a circular groove, and the second surface defines multiple receiving holes.