Dust cover of angle grinder

The utility model discloses a dustproof cover for an angle grinder, which relates to the technical field of angle grinders and comprises a semicircular dustproof outer cover, a fixing disc is arranged in the middle of the dustproof outer cover, a fixing portion is arranged on the upper end face of the fixing disc, an inclined dust suction pipe is mounted on the edge of the upper end face of the fixing disc, and a movable inner cover is rotatably mounted in the dustproof outer cover. One side of the movable inner cover is provided with a notch for exposing a grinding wheel of the angle grinder, the edge of the movable inner cover is provided with driving lines, the edge of the dustproof outer cover is fixedly provided with a control box, an adjusting column is rotationally installed in the control box, and the lower end of the adjusting column is arranged in the control box and fixedly provided with an adjusting gear. The dustproof device is reasonable in structure, when the dustproof device is used, a whole c