Fecha de publicación: 30/03/2021 Fuente: WIPO "circular economy" The utility model relates to the technical field of waste steel recovery equipment, in particular to an efficient waste steel crusher, which is characterized in that waste steel is poured into a crushing box from a feeding pipe, the waste steel is quickly crushed through high-speed rotation of a crushing hammer, and the crushing box is inclined through an inclined seat, so that the crushed waste steel is convenient to discharge; dust generated in the crushing box is sucked into the filtering box through suction provided by the draught fan to be filtered and adsorbed, clean air is discharged out of the filtering box, pollution to the environment is reduced, and a good working environment is provided for workers. The crusher comprises a base, a support column, a crushing box, a feeding pipe,a discharging pipe, a power box, a rotating shaft and a crushing hammer, the device further comprises an inclined seat, an air suction groove, an air suction pipe, a filter box, a partition plate, afilter screen, a mounting box, a fan, an adsorption layer, a cleaning shaft and a cleaning brush, the inclined seat is fixedly arranged on the left side of the top of the base, and the bottom of the crushing box is fixedly arranged on the top of the inclined seat.