Multifunctional pilling machine for jet grouting pile sinking

The utility model belongs to the field of foundation engineering construction equipment, and particularly relates to a multifunctional pilling machine for jet grouting pile sinking, which comprises a chassis, an operating chamber, a hydraulic working station, a rotary stand column and winches, wherein a jet grouting drilling machine and a hydraulic hammer are suspended on a main winch and a second winch respectively; the rotary stand column is provided with two longitudinal sideways with a 90-degree horizontal included angle; and the jet grouting drilling machine and the hydraulic hammer are respectively positioned in the two longitudinal sideways. In the utility model, a cement soil pile construction machine and a high-strength prestressing pipe pile construction machine are integrated into a whole, the pilling machine is static after a peripheral cement soil pile is constructed, and the high-strength prestressing pipe pile construction can be conducted by rotating the rotary stand column by 90 degrees in si