Dust removal device for aluminum alloy profile machining

The utility model discloses a dust removal device for aluminum alloy section processing, which belongs to the technical field of aluminum alloy plate polishing, and comprises a processing box for polishing aluminum alloy and an air suction plate fixed in the processing box, and the back of the processing box is sequentially provided with a powerful suction fan and a dust collection box from top to bottom. A plurality of air suction covers are mounted on the outer wall of one side of the air suction plate, positioning plates are fixedly connected to the inner walls of the two sides of the treatment box, double-thread lead screws are rotatably connected to the surfaces of the positioning plates, guide sleeves are in threaded connection to the outer walls of the double-thread lead screws, and second electric push rods are mounted in the guide sleeves; the driving end of the second electric push rod is fixedly connected with a mounting frame, and a polishing roller is rotationally connected into the mounting fram