Stone cutting device for quarry

The utility model belongs to the technical field of stone cutting, and particularly relates to a stone cutting device for a quarry, which comprises a shell, a base is arranged at the bottom of the shell, a first motor is arranged on the surface of the shell, a threaded rod is mounted at the output end of the first motor, and a threaded cylinder is arranged on the surface of the threaded rod. The dust collection box is arranged on the surface of the shell, the dust suction machine is arranged at the top of the dust collection box, and the dust collection box is matched with the dust suction pipe, so that chippings generated by cutting can be sucked into the dust collection box, and the chippings are prevented from drifting away and influencing the environment; and water can be added into the water tank through cooperation with a first water pump, water can be sprayed to the cutting knife and the stone through a second water pump and a gate valve in a water outlet pipe in an open state, the cutting knife and th