Main winch hydraulic control system for rotary drilling machine and rotary drilling machine

The utility model provides a main winch hydraulic control system for a rotary drilling machine and further provides the rotary drilling machine with the main winch hydraulic control system. The main winch hydraulic control system comprises a first main pump, a main valve structure and an inverse feedback return circuit, wherein the first main pump is provided with an inverse feedback port, the main valve structure is provided with an inverse feedback connection port, and the inverse feedback connection port and the inverse feedback port are connected through the inverse feedback circuit. When the main winch is put down and the inverse feedback port receives inverse feedback oil from the inverse feedback connection port. The main winch hydraulic control system further comprises a pressure control device, the pressure control device is connected to the inverse feedback port and controls discharge capacity of the first main pump through controlling pressure of the inverse feedback port. The main winch hydraulic control system for the rotary drilling machine and the rotary drilling machine can effectively reduce time of putting a drill of the drilling machine and improve work efficiency of the rotary drilling machine and is simple in structure and easy to achieve. Other hydraulic return circuits are not altered and improvement cost is low.