Environment-friendly crushing device

The utility model discloses an environment-friendly crushing device which comprises a crushing box, the top end of the crushing box is provided with a feeding port, the top of the inner wall of the crushing box is provided with a crushing assembly, the crushing assembly comprises two check blocks and two first rotating motors, and the two check blocks are fixedly arranged at the tops of the two sides of the inner wall of the crushing box respectively; the two first rotating motors are fixedly installed at the top of the side edge of the crushing box respectively, and output shafts of the two first rotating motors are fixedly connected with the two first rotating shafts respectively. According to the stone crushing device, stone which is not completely crushed can be conveyed to the positions above the two crushing rollers to be subjected to secondary crushing, the crushing effect and the working efficiency of the crushing device are improved, the exhaust fan and the dust storage box are arranged, the exhaust