High-pressure jet grouting pile machine

The utility model belongs to the technical field of foundation construction, and discloses a high-pressure jet grouting pile machine which is used for reinforcing a reinforced soil body and comprises a machine frame, a lifting device, a jet grouting device and a stirring device. The lifting device is in sliding connection with the rack, and the lifting device can move in the vertical direction; the rotary spraying device comprises a rotary spraying pipe, the upper end of the rotary spraying pipe is connected with the lifting device, a spraying head is arranged at the lower end of the rotary spraying pipe, and the rotary spraying pipe can rotate around the axis of the rotary spraying pipe and can move up and down along with the lifting device; the stirring device comprises at least two stirring pipes which are evenly distributed around the axis of the rotary spraying pipe at intervals, the upper ends of the stirring pipes are connected with the lifting device, stirring heads are arranged at the lower ends of t