To provide an epoch-making crusher which crushes a material to be crushed more finely compared with a conventional example by adopting three steps of crushing structure.

The crusher is provided with a rough crushing part 3 constituted so that the material to be crushed 2 is roughly crushed by facing rough crushing rollers 1 having many projected parts 1A on their surfaces at prescribed intervals and by passing the material 2 such as charcoal between faced rough crushing rollers 1, a first fine crushing part 5 constituted so that the material 2 is finely crushed by facing fine crushing rollers 4 at prescribed intervals and by passing the material 2 roughly crushed in the rough crushing part 3 between the facing fine crushing rollers 4, and a second fine crushing part 6 constituted so that the material 2 is more finely crushed by facing the fine crushing rollers 4 at intervals minuter than the facing space of the fine crushing rollers 4 of the first fine crushing part 5 or facially contacting the fine crushing rollers 4 and by passing the material 2 finely crushed in the first fine crushing part 5 between the facing fine crushing rollers 4.