Dust falling device of quartz stone cutting machine

The utility model discloses a dust falling device of a quartz stone cutting machine, and relates to the field of dust falling of quartz stone cutting machines. The quartz stone cutting device comprises an operation table, a supporting plate is fixedly installed on the upper end face of the operation table, a cross rod is fixedly installed on one side of the supporting plate, a sliding plate is slidably installed on the radial outer wall of the cross rod, a cutting knife used for cutting quartz stone is rotatably installed on the lower end face of the sliding plate through an output motor, and a guide pipe used for dust falling is fixedly inserted into the upper end face of the sliding plate. The axial end of a transmission pipe is inserted into an inner cavity of a guide pipe and then rotates in the axis direction of a transmission ring, the axial end of a stop lever is attached to the upper end face of a baffle, an installation ring can move in the direction close to a limiting ring, and then the axial end o