The utility model discloses a chain band conveyer, including the frame, be equipped with guide rail, head pulley and tailwheel in this frame, head pulley is located the left side of guide rail, and the tailwheel is located the right side of guide rail, and head pulley and driving motor are connected, are connected with the conveying chain between head pulley and the tailwheel, are equipped with the layer board on the conveying chain, are equipped with the annular conveyor belt who walks around head pulley and tailwheel on the layer board, still are equipped with side shield and a plurality of scraper blade on this layer board, still are equipped with the flange that is located the conveyor belt below in the frame, and the tailwheel is connected with a tailwheel straining device. The utility model discloses a chain band conveyer's structure can satisfy the requirement of big transmission capacity, big inclination and high -speed conveying material, can prevent that the powder from shedding and than the seepage of liquid in the wet stock to can realize self -cleaning return stroke blanking, can improve transport efficiency evidently, reduce the energy consumption, preventing pollution environment reduces artificial intensity of labour, saves operation expense.