Disclosed is a crusher that can quickly recover from suspended operation resulting from the presence of a foreign material. The crusher is equipped with a crushing rotor (32) that is supported in a freely rotatable manner on side surface frame (19) of the crusher, a housing (41) arranged in a rotatable manner on the side surface frame (19), an anvil (33) that is supported by said housing and faces crushing chamber (31) around crushing rotor (32), a lever (90) which is arranged on the opposite side of the housing (41) from the crushing rotor (32), which is provided in a rotatable manner relative to the side surface frame (19) and which has a retaining part that presses the housing (41) so that the anvil (33) is held in an orientation facing the crushing chamber (31), and an elastic member (93) that energizes lever (90) with a set energizing force, and that turns lever (90) to allow turning and retraction of the anvil (33) from the crushing chamber (31) when the rotary force applied to the lever (90) through the retaining part exceeds the energizing force.