Environment-friendly ball milling device for concrete production

The utility model discloses an environment-friendly ball-milling device for concrete production, which comprises a grinding box body, an observation window is arranged on one side of the grinding box body, a feed port is arranged in the center of the top end of the grinding box body, a feed hopper is arranged above the feed port, a plurality of discharge ports with fan-shaped structures are arranged in the center of the bottom end of the grinding box body, and the feed hopper is arranged above the feed port. A crushing barrel is arranged at the upper end in the grinding box body, a grinding cavity is formed in the lower end of an inner cavity of the grinding box body, motors are installed on the bottom end face and the middle of the grinding box body, an output shaft of each motor is fixedly connected with a rotating shaft which extends into the grinding box body and extends into the crushing barrel, and a crushing rod is installed at the position, in the crushing barrel, of the upper end of each rotating sha