Shot recovery mechanism of shot blasting machine

The utility model discloses a shot blasting machine shot recovery mechanism which comprises a recovery box arranged below a shot blasting chamber, two inclined filter plates are arranged in the recovery box, the lower ends of the two filter plates are hinged to the inner wall of one side of the recovery box, and the upper ends of the two filter plates are connected with the inner wall of the other side of the recovery box in a sliding mode. A driving mechanism for enabling the two filter plates to swing along the hinged position is arranged in the recycling box; the filter holes of the upper filter plate are larger than those of the lower filter plate, and the interior of the recycling bin is sequentially divided into a pill area, a broken pill area and a dust area from top to bottom through the two filter plates. A slag shot mixture falling from the shot blasting chamber enters the recovery box, the filter plate on the upper side filters dust and broken shots, intact shots stay on the filter plate on the upp