Stone cleaning machine

The invention discloses a stone cleaning machine. At least two pushing device sets are arranged on a rack, each pushing device set comprises at least three pushing devices, each pushing device penetrates through the rack to be connected with a pushing plate on the surface of the rack, two limiting plates are arranged on the two sides of the surface of the rack, four sets of lower spray heads are arranged on the surface of the rack, and four sets of upper spray heads are arranged on the limiting plates. When the stone cleaning machine is used, stone is placed on the surface of the rack througha crane, the four sets of upper spray heads and the four sets of lower spray heads clean the stone according to a specific rotation rule, the stone is jacked up through one pushing device set, and therefore the bottom of the stone can be cleaned through the lower spray heads; then the other pushing device set jacks up the stone and continues to clean the bottom of the stone through the lower sprayheads, and therefore the