An in-line bagless dry vacuum cleaning appliance having a vacuum conduit within a separator tube, the vacuum conduit having spaced apart first and second vacuum suction apertures communicating with an exhaust connector; a cyclone chamber communicating with an intake connector and encompassing the first vacuum suction apertures for forming a cyclonic flow region between the central vacuum conduit and an interior wall of the separator tube; a particle receiving chamber communicating with the cyclone chamber; an axial cyclone inlet communicating between the cyclone chamber and the intake connector of the separator tube; a particle separator dividing the particle receiving chamber from the cyclone chamber and forming a first transfer gap therebetween adjacent to the interior wall of the separator tube for receiving disentrained particles into the particle receiving chamber from the cyclone chamber; and a filter between the particle receiving chamber and the second vacuum suction aperture.