Multi-line downward pressing type stone cutting machine

The invention provides a multi-line downward pressing type stone cutting machine. The cutting machine comprises a rack and a cutting device. A containing space for containing quarry stone is formed in the lower portion in the rack, and the cutting device is located in the rack and ascends and descends relative to the containing space. In the cutting device, rollers are arranged at the upper end and the lower end of the two sides in a lifting frame, the diamond wire circularly bypasses the rollers in the lifting frame, so that the diamond wire forms a plurality of cutting wires arranged in parallel below the lifting frame, and the two ends of the diamond wire are connected to winding and unwinding cylinders arranged on the two sides outside the lifting frame respectively. During working, one winding and unwinding drum rotates forwards to pull the diamond wire to be wound, and the other winding and unwinding drum rotates backwards to release the diamond wire, so that each cutting wire below the lifting frame ca