The invention discloses a crusher convenient to clean and maintain. The crusher comprises a crushing chamber, a feed hopper, a first ring sleeve, a first limiting ring, a sieve plate, an end cover, a second ring sleeve, a second limiting ring and a discharging guide pipe, wherein a driving motor is installed at the middle of the left side of the crushing chamber, the feed hopper is installed on the left side of an upper end of the crushing chamber, a first joint is arranged at a right end of the crushing chamber, the first limiting ring is installed at the left end of the first joint, the first limiting ring is arranged at the left end of an inner side of a first connecting piece, the first ring sleeve is installed at the right end of the first joint, a second joint is arranged at the middle of the left side of the end cover, the end cover is installed on the right side of the first connecting piece through the second joint, and the sieve plate is installed at the left end of the inner side of the end cover. According to the crusher disclosed by the invention, the parts and components are easy to disassemble and reassemble and are convenient to maintain, clean and transport, and a discharge opening of the discharging guide pipe can be adjusted in all directions, and the concentrated fatigue strength of workers can be reduced.