Feeding system of rare earth oxide firing rotary kiln

The utility model relates to the technical field of rare earth smelting production, in particular to a feeding system of a rare earth oxide burning rotary kiln, and solves the problems that in the prior art, a small-sized rare earth oxide burning rotary kiln is unstable in feeding, the rotating speed is not matched with the feeding speed, material blockage is easy to occur and the like. The rotary kiln specifically comprises a feeding hopper, a conveying belt conveyor, a belt conveying motor, a receiving hopper, a feeding screw, a recycled material feeding port, a kiln head feeding box, a rotary kiln smoke outlet, a spiral feeding port, a digging device of a specific structure, a reverse push plate, a star-shaped unloader, an arc-shaped discharging port and an adjusting piece. Materials are conveyed to a receiving hopper through a conveying belt conveyor, then the materials are conveyed into a bin of a kiln head feeding box through a feeding screw conveyor, and the materials in the bin of the kiln head feedin