The invention discloses a chain type belt conveyor which comprises a rack. A guide rail, a head wheel and a tail wheel are arranged on the rack, the head wheel is located on the left side of the guide rail, the tail wheel is located on the right side of the guide rail, the head wheel is connected with a driving motor, a conveying chain is connected between the head wheel and the tail wheel, a support plate is arranged on the conveying chain and is provided with an annular conveying belt winding around the head wheel and the tail wheel, and the support plate is further provided with a side baffle and a plurality of scrapers; and the rack is further provided with a receiving disc located below the conveying belt, and the tail wheel is connected with a tail wheel tensioning mechanism. By means of the structure of the chain type belt conveyor, the requirements for large conveying amount, large dip angle and high-speed material conveying can be met, material throwing and leakage of liquid in wet materials can be prevented, return falling materials are cleaned by itself, the conveying efficiency can be obviously improved, energy consumption is reduced, environment pollution is prevented, the labor intensity of manual work is reduced, and the running and maintaining cost is saved.