Gypsum fine grinding device

The utility model discloses a fine grinding device for gypsum, which belongs to the technical field of gypsum processing and comprises a grinding box, a feed hopper is fixedly connected above the grinding box, a feed port is arranged in the feed hopper, a grinding hopper is arranged below the feed port, a grinding mechanism is arranged in the grinding hopper, and the grinding mechanism is connected with the feed hopper. A driving motor used for driving the grinding mechanism is fixedly connected to the outer side of the grinding box, a discharging opening is formed in the lower portion of the grinding hopper, a strip-shaped hole is formed in the upper portion of the side, close to the feeding opening, in the feeding hopper, the feeding hopper is provided with a feeding baffle located in the strip-shaped hole, and the feeding baffle is in sliding connection with the strip-shaped hole; and a transmission mechanism for controlling the feeding baffle to be pulled and inserted is arranged between the feeding baffl