Automatic feeding machine

The utility model belongs to the technical field of feeding machines, and particularly relates to an automatic feeding machine which comprises a feeding frame and a concentric-square-shaped plate, two supporting legs are installed on one side of the bottom end of the feeding frame, an adjusting assembly is arranged on the other side of the bottom end of the feeding frame, supporting plates are installed at the two ends of the concentric-square-shaped plate, and the adjusting assembly is connected with the supporting plates. And mounting plates are mounted at the bottom ends of the two supporting plates correspondingly, two rolling wheels are symmetrically mounted at the bottom ends of the two mounting plates correspondingly, a feeding hopper is mounted at the bottom end of the concentric-square-shaped plate, and a screening assembly is arranged in the concentric-square-shaped plate. Through the arrangement of the screening assembly, materials can be conveniently screened and used, the phenomena that the mater