Lost foam casting device for aluminum wheel

The utility model relates to the technical field of evanescent mode casting, and discloses an aluminum wheel evanescent mode casting device which comprises a casting box and a processing box, a one-way control valve is arranged in a breather pipe, and a purification device is arranged in the processing box. The purification device comprises a fixing frame, a rotating rod, a liquid storage frame, a motor, a driving wheel, a driven wheel, a filter screen, a spray pipe, a small spray head, a spray head, a gear ring and a gear, and the spray head and the small spray head at the lower end of the liquid storage frame conduct longitudinal and transverse spraying, so that the spraying range and angle of a purifying agent are widened, and spraying dead angles are reduced; dust in smoke is secondarily filtered through a filter screen, and meanwhile, when a rotating rod rotates, a sleeve on the surface of the upper end of the rotating rod can be driven to move up and down, so that a connecting rod on the side wall of th