The invention relates to the field of fur dyeing equipment, in particular to a rotary dyeing machine feeding hopper with a draining function. The rotary dyeing machine feeding hopper is characterized in that a draining outlet is formed in the sealed end of the hollow cavity of the feeding hopper and provided with a control valve, and the control handle of the control valve extends to an annular opening. The control valve for the rotary dyeing machine feeding hopper comprises a cylindrical outer shell and a cylindrical inner shell, wherein a plurality of first draining holes are formed in the same circumference of the outer shell, the inner shell is arranged in the outer shell and rotatably connected with the same, and the inner shell is provided with second draining holes as many as and corresponding to the first draining holes; the control handle is arranged at the end of the inner shell. By the control valve, the rotary dyeing machine feeding hopper with the draining function has the advantages that water inside the feeding hopper can be drained conveniently, feeding stability is guaranteed, and application performance is increased.