The invention relates to a feeding box with a rotating rake. The feeding box comprises a material box, a buffer plate, a sieve, an impurity-removing door and a discharging pipe. The buffer plate is obliquely arranged in the middle in the material box and located below a discharging outlet of an ore pulp pipeline; the sieve is horizontally arranged in the middle in the material box and connected with the buffer plate; the impurity-removing door is arranged on the side wall of the material box, wherein the side wall of the material box is located on the side, away from the buffer plate, of the sieve; the discharging pipe is arranged below the impurity-removing door and communicates with the bottom in the material box; the rotating rake is arranged in the material box; and the two ends of therotating rake are rotatably connected with the top of the inner side of the material box. Compared with the prior art, the rotating rake of the feeding box rotates to discharge impurities and large-particle ores from the impurity-removing door, and thus the feeding efficiency is promoted.