Polyethylene powder lifting and separating device of polyethylene production system

The utility model relates to a polyethylene powder lifting and separating device of a polyethylene production system, which comprises a drying box, and a flapping mechanism and a drying device which extend into the drying box are arranged outside the drying box; the beating mechanism comprises a driving motor fixedly mounted at the top of the drying box, a mounting shaft arranged in the drying box, a connecting shaft which is fixedly mounted at the left end of the mounting shaft and extends out of the drying box, and a transmission wheel which is fixedly mounted at an output shaft of the driving motor and the left end of the connecting shaft; and the exteriors of the two transmission wheels are in transmission connection with a conveying belt, and a sector plate is fixedly installed on the exterior of the installation shaft. According to the polyethylene production system lifting polyethylene powder separation device, polyethylene powder is conveyed into the drying box through the conveying pipe, meanwhile, t