Two-stage wet crusher

The utility model relates to a two-stage wet crusher which comprises a rack, an upper crushing bin and a lower crushing bin are fixed on the rack, a feeding hole is formed in the top of the upper crushing bin, a discharging hole is formed in the bottom of the lower crushing bin, the upper crushing bin is communicated with the lateral upper part of the lower crushing bin, and an upper rotor and a lower rotor are respectively arranged in the upper crushing bin and the lower crushing bin; and the upper rotor and the lower rotor rotate in the same direction. And two sets of rotors which are connected and are in the same direction are adopted, so that the materials which are crushed and fly by the upper rotor are finely crushed again by the lower rotor which rotates at a high speed, and the materials collide with one another and are crushed mutually. The material moisture content is not strictly required, the problems that the sieve plate is burnt and blocked and fine powder cannot be discharged in time and is rep