Cyclone dust collector

The utility model relates to the technical field of cyclone dust collectors, and discloses a cyclone dust collector, which solves the problem that the dust collection efficiency of the cyclone dust collector is greatly influenced by air leakage of an existing dust discharge hopper during dust discharge, and comprises a cylinder body, an exhaust port is fixedly arranged at the top of the cylinder body, and an air inlet is fixedly arranged at the left side of the cylinder body. An ash discharging hopper is fixedly mounted at the bottom of the barrel, and a first fixing mechanism and a second fixing mechanism are mounted on the inner side of the ash discharging hopper; according to the utility model, through the matching among the bottom plate, the vertical rod and the top plate, the plugging block can be positioned on the inner side of the guide cylinder, the sealing gasket is attached to the bottom of the guide cylinder, and through the matching among the lower nut, the upper nut, the screw rod and the fixing