Shot-blasting machine is a kind of shot-blasting equipment, which is applied to clean the surface of steel structure welding work-piece, H-style steel, plate and other profiles. It can clean away rusty spot, rusty scale, welding slag on the work-piece surface, as well as welding stress, in order to remove stress and improve surface lacquer quality and rot proofness of steel structure and steel. Developed and researched with the consideration of the characteristics of steel construction, the roll-type H beam shot blasting and cleaning machine adopts the computer three-dimension dynamic simulation design to locate the position of shot blasting machine. Meanwhile, it has been equipped with high efficiency cartridge pulse jet back-blow dust collector.