Novel screw conveyer

The utility model relates to the technical field of mechanical equipment, in particular to a novel spiral conveyor which comprises a machine box and a machine frame arranged outside the machine box. An opening is formed in the top of the case, and a telescopic cover plate is arranged at the opening of the case; a feeding hole is formed in one side, facing the rack, of the case; a discharge hole is formed in one side, far away from the rack, of the case; a driving motor is arranged on the rack, and a speed reducer is arranged at the output end of the driving motor; the output end of the driving motor is inserted into the case through a speed reducer; a connecting shaft is arranged in the middle of the case; the driving motor drives the connecting shaft to rotate; a spiral rotating blade is arranged on the periphery of the connecting shaft; the rotating blades are kept in contact with the inner wall of the case; the rotating blades are fixedly connected with the connecting shaft by welding; limiting rods are ar