Cyclone dust collector

The utility model relates to a cyclone dust collector which comprises a conical cover body, a pillar, a cyclone vane and a flange tube, wherein the cyclone vane is arranged on the flange tube, and the pillar is connected with the flange tube through a connecting frame; and the conical cover body is covered on the outsides of the cyclone vane and the pillar, the top of the pillar is fastened with the conical cover body through a connecting component, the conical cover body is provided with a dust outlet, and the cyclone vane is arranged at the lower part of the conical cover body. The cyclone dust collector disclosed by the utility model has the beneficial effects that: the cyclone dust collector is not required to be cleaned, can be maintenance-free and can achieve air inlet requirements. Different numbers of cyclone dust collectors are adopted according to air inlet areas, therefore, the cyclone dust collector is strong in commonality and convenient for production, storage, expansion and a series of applicat