To provide a garbage crusher capable of efficiently crushing garbage and preventing liquid from penetrating into its bearings making its maintenance work easier even upon crushing organic waste containing a large amount of liquid such as water and oil.

The garbage crusher according to the present invention is equipped with a feed port for feeding an object to be crushed disposed on its upper part, a discharge port for discharging the crushed object disposed on its lower part, a tiltingly disposed cylindrical casing, and a rotary crushing part for crushing the object fixed to a rotary shaft along the axial direction of the rotary shaft which is disposed in the cylindrical casing on the axis thereof and held by a pair of bearings.