Scrap iron removing device used before lime block crushing

The utility model discloses a scrap iron removing device before lime block crushing. The right end of a cylinder at the upper end of a supporting frame inclines downwards by 30 degrees, a discharging window is formed in the middle of the bottom face of the cylinder, an electromagnet scrap iron removing device is fixedly assembled in the cylinder, a sliding shielding structure is arranged below the discharging window in a shielding mode, and a scrap iron containing groove is formed in the supporting frame. The electromagnet scrap iron removal device can magnetically adsorb scrap iron in lime blocks before crushing, thorough removal of the scrap iron is achieved through iron adsorption rods arranged in multiple layers, a sliding shielding structure is opened after scrap iron removal is completed, then an electromagnet is closed, and the scrap iron in the lime blocks is removed. The scrap iron adsorbed on the iron adsorption rod falls into the scrap iron storage groove along the discharging window, so that the s