Petroleum drilling waste mud treatment device

The utility model discloses a petroleum drilling waste mud treatment device, which belongs to the technical field of petroleum drilling and comprises a protective shell, a recycling mechanism is arranged in the protective shell, a discharging mechanism is arranged at the top of the protective shell, the recycling mechanism comprises a recycling tank, and a feeding pipe is fixedly connected to the upper surface of the recycling tank. A discharging pipe is fixedly connected to the lower surface of the recycling tank, a limiting supporting plate is rotatably connected to the bottom of the recycling tank, a limiting circular ring fixedly connected with the protective shell is arranged above the limiting supporting plate, and a plurality of first height adjusting pieces used for being matched with the limiting supporting plate to adjust the height of the recycling tank are arranged on the lower surface of the limiting circular ring; a plurality of second mixing blocks are arranged on the inner wall of the recovery