The invention discloses a high-temperature-resistant calcium carbide crusher, which comprises a main motor (1), a hydraulic coupler (2), a speed reducer (3), a coupling (4), a main bearing seat (5), a main shaft I (7A), a main shaft II (7B) and a dental plate (9) which are connected in sequence, wherein the main shaft I (7A) and the main shaft II (7B) are …