The invention relates to the field of boron carbide production equipment, in particular to a feeding device for boron carbide production. The feeding device includes a feed hopper and an elevator, a heating device is arranged in a shell of the feed hopper, the upper part of the shell of the feed hopper is a conical shell, a feed port is formed in one side of the conical shell, the conical shell isinternally provided with an arc-shaped filter screen, a crushing mechanism is arranged at the upper end of the arc-shaped filter screen, and the side wall of the shell of the feed hopper communicateswith dust removal equipment through a fan; and an inverted conical discharge port is formed in the lower end of the shell of the feed hopper, an anti-blocking device is arranged on one side of the interior of the discharge port, a feed port of the elevator is connected with a discharge port of the feed hopper, a shell of the elevator is internally provided with an interlayer, air pipes are spirally distributed in the interlayer, high-pressure spraying heads are arranged on the air pipes, and air outlets matched with the high-pressure spraying heads are formed in the inner wall of the shell ofthe elevator. The feeding device has novel structure and reasonable design, can increase the feeding speed, improve the production efficiency, lower the working labor intensity and simplify clearing.