Shot blasting cleaning equipment for the internal and external wall of air blower tower could clean the internal and external wall of large pipe at the same time. Through shot blasting cleaning, it removes oxide skin; old paints and other attached dirt on the surface of pipe and steel can quickly. After obtaining certain roughness on the surface, it coats protection layer on the surface, improves the adhesive force of paint film, fatigue resistance and corrosion resistance of the work piece, interior quality of the work piece, and extends service life. Adopt shot peening technology to clean the internal wall of cylinder. It mainly uses compressed air as power and utilizes the kinetic energy that is created by acceleration of shot to hit the internal wall of pipe fitting and steel can. When the pipe fitting is located in the spray gun chamber, the spray gun will stretch into the internal cavity automatically, move up and down in the cavity, and complete spray cleaning on the internal wall of pipe fitting at all directions. Shot blasting cleaning equipment on external wall of tower is a new shot blasting cleaning equipment that is researched and developed by our company. It is applicable for rust removal on the external wall of wind tower drum. It adopts high efficient motor direct-connected impeller head. The impeller head makes angular compensation through a spindle, and make good contact sealing shot blasting between impeller head and tower. The equipment realizes rust removal and cleaning by using tower rotation and movement of shot blasting machine along the axial direction of tower. It could complete the shot blasting and rust removal on the external wall of wind tower drum (steel pipe) quickly and clean.