Dustproof fan

The utility model provides a dustproof fan, which relates to the technical field of fan dust prevention and comprises a hub, an air inlet pipeline is movably connected to one side of the hub, a motor is movably mounted on the other side of the hub, and a dust removal device is movably mounted at the joint of the air inlet pipeline and the hub and comprises a hollow box. A reinforcing frame is slidably connected to the inner wall of the hollow box body. The dust removal device is additionally arranged between the air inlet pipeline and the machine hub, the reinforcing frame in the dust removal device can move in the hollow box body under the action that the double-end motor drives the gear, and the inclined plate can make contact with air in the air inlet pipeline in the moving process of the reinforcing frame; due to the fact that the inclined plate and the air inlet pipeline are inclined by an angle, dust in air can enter the gathering hole and the interior of the cavity, and the cleaning scraping rod can mo