Bent pipe shot blasting plant

The utility model provides a bent pipe shot blasting plant, which comprises a main cleaning chamber and two auxiliary chambers for stopping shots. Two rotating directional impeller heads, a rotating roller way and two auxiliary support roller ways are arranged in the main cleaning chamber and the two auxiliary chambers respectively, the rotating roller way externally wrapped with a high chromium sheath is driven by a cycloidal-pin gear speed reducer, and sealing curtains are arranged at both ends of the main cleaning chamber and at both ends of each auxiliary chamber to stop steel shots from overflowing. The bent pipe shot blasting plant adopts mechanical operation, quality is easy to control, and the shortcomings of difficulty in ensuring quality, high labor intensity and the like of a manual corrosion-resistant operation mode are avoided.