The invention relates to a powder mill, and in particular relates to a powder mill for producing activated carbon. The powder mill for producing the activated carbon can efficiently crush active carbon raw materials and perform high-grade fine screening of qualified products. The powder mill for producing the activated carbon includes a crushing tank body, a storage tank, a feeding pipe fitting, afeeding part, a grinding part, a collecting tank, an inclined pipe, a filter and an air draft part; the storage box is fixedly connected with the inner side wall of the crushing tank body, the feeding pipe fitting is fixedly connected with the bottom of the storage box, the feeding part is fixedly connected with the feeding pipe fitting, the grinding part is fixedly connected with the inner sidewall of the crushing tank body, and is located directly below the feeding part; and the inclined pipe is fixedly connected with the inner side wall of the crushing tank body. The powder mill achievesthe effect of high-efficiency crushing of the activated carbon raw materials and the high-grade fine screening of the qualified products.