Crushing and sorting equipment for NdFeB (neodymium iron boron) native casting pieces

Crushing and sorting equipment for neodymium iron boron original casting pieces belongs to the technical field of crushing and sorting equipment and comprises a feeding unit, a meshing crushing unit, a dust removal unit, a rapid sorting unit and a screening and collecting unit which are arranged in a three-dimensional mode and sequentially connected from top to bottom. The feeding unit comprises an elevator, a storage bin and a vibrating feeder; the meshing crushing unit comprises at least one group of crushing components, each group of crushing components comprises a first roller, a second roller and a first driving unit, a plurality of crushing teeth are arranged on the circumferential side walls of the first roller and the second roller, and the crushing teeth are sequentially distributed in a staggered manner; the quick sorting unit comprises at least one group of sorting components, each group of sorting components comprises a third roller, a fourth roller and a second driving unit, and the third roller