The device can achieve automatic discharge pipe, pipe inner wall of shot peening operation automatically. First reverses the sealed room open from automatic feeder can automatically reserve pipe into the working position on the rack, the workpiece in place pipe holding device will automatically hold artifacts, reversing sealing Chamber, starting rotation of the workpiece, Lance vehicle drag pipe spraying the airbrush work. We design air volume of dust removal system, wind power recycling of steel can be achieved within the projectile, and dust collection. Blast cleaning ends, close the ball valve and fuel injection valve sand, sandblast drag cleared system steel tube, moving the sealed Chamber moves outward, trolley Pole on discharge pipes are automatically allocated. Steel pipes are automatically rolled to the unloading platform, which implements a work cycle.