Thermal desorption polluted soil pretreatment equipment

The utility model relates to the technical field of soil treatment equipment, in particular to thermal desorption contaminated soil pretreatment equipment which comprises a U-shaped base, a crushing main machine body is arranged at the position, close to the right end, of the top of the U-shaped base, a first connecting part is rotationally connected into the crushing main machine body, and a crushing cavity in the crushing main machine body is movably connected with a movable jaw piece. The top end of the movable jaw piece is connected with the first connecting part, a static jaw piece is arranged on the right side of the crushing cavity in the crushing main machine body, and a discharging opening is formed in the bottom of the crushing cavity in the crushing main machine body. According to the thermal desorption contaminated soil pretreatment equipment, the movable jaw piece is driven by the first connecting part to reciprocate towards the static jaw piece, soil and stones in a crushing cavity in the crushi