Soil and underground water remediation device

The utility model relates to the technical field of soil remediation equipment, in particular to a remediation device for soil and underground water, which increases the mixing efficiency of the device and reduces caking residues. Comprising a mixing box, a mounting shaft, hollow shafts, a connecting shaft, stirring blades, a driving shaft, a first gear, a second gear and a driving mechanism, the mounting shaft is rotatably mounted at a through hole of the mixing box, the hollow shafts are rotatably mounted at a notch of the mounting shaft, the hollow shafts are rotatably connected end to end in a matched manner, and the two stirring blades are symmetrically mounted on the hollow shafts and the connecting shaft respectively. The two sets of driving shafts are rotationally connected with inner holes of the two sets of mounting shafts in a matched mode, the first gears are connected with internal teeth of the connecting shafts and the hollow shafts in a meshed mode, the multiple sets of first gears on the two s