Soft foundation treatment stirring device

A soft foundation treatment stirring device comprises a power box, an inner transmission shaft, an outer transmission shaft, an inner drill pipe, an outer drill pipe and a drilling and stirring wing, wherein the inner transmission shaft and the outer transmission shaft are coaxially connected in a sleeving mode, the inner drill pipe and the outer drill pipe are coaxially connected with the inner transmission shaft and the outer transmission shaft, and the drilling and stirring wing is arranged at the tail end of the inner drill pipe. The power box comprises a motor, a speed reducer connected with the motor, and a transmission gear mechanism, wherein the output shaft of the speed reducer is connected with the inner transmission shaft through a coupler, and the transmission gear mechanism is connected with the outer transmission shaft and drives the outer drill pipe to rotate in the reverse direction. A guniting nozzle is arranged below the power box and is arranged between the combination of the inner transmission shaft and the outer transmission shaft and the combination of the inner drill pipe and the outer drill pipe. The soft foundation treatment stirring device has the advantages of being simplified in structure, low in energy consumption, efficient, less in running expense, easy to master, suitable for industrialized application and the like, the phenomenon that an inner pipe and an outer pipe are blocked and locked due to bleeding is effectively prevented, and the service life of the gear mechanism is effectively prolonged.