Kitchen garbage crushing device

The utility model provides a kitchen garbage crushing device. The kitchen garbage crushing device comprises a grinding water filtering tank and a crushing tank arranged on one side of the grinding water filtering tank, a discharging hole is formed in the side wall of the grinding water filtering box, and a feeding hole corresponding to the discharging hole is formed in the side wall of the smashing box. A feeding hopper I is arranged at the top of the grinding water filtering tank, and the interior of the grinding water filtering tank sequentially comprises a double-roller grinding chamber, a filter screen plate and a liquid collecting chamber from top to bottom; the filter screen plate is obliquely and rotatably arranged in the grinding water filtering box, the lower end of the filter screen plate penetrates through the discharging hole and the feeding hole to enter the crushing box, and materials on the filter screen plate can quickly enter the crushing box by rotating the filter screen plate. According to