The utility model discloses a laboratory is with jaw breaker for mineral aggregate fill, including feeder hopper and slope feed cylinder, the welding is link up to feeder hopper's lower extreme and slope feed cylinder's upper end, this laboratory is with jaw breaker for mineral aggregate fill simple structure, through adding the baffle, the integrated configuration of fan and filter screen, utilize the baffle to make material granule along the returned along an original path of spill, can prevent the spill of material granule, and utilize slope feed cylinder's gradient, to having the cushioning effect for the material, the stability and the homogeneity of feed have been increased, the dust that produces when recycling the fan with the breakage simultaneously inhales in the spray chamber, meanwhile, it leads to pipe and spouts through the shower nozzle to utilize the water pump will catchment the water of intracavity, adsorb the aquatic with the dust, pass through filter again, on staying the filter screen with the dust, limpid water flows back to the intracavity that catchments again, simultaneously, so relapse, the continuous detaches the dust.