Waste mineral oil treatment device

The utility model discloses a waste mineral oil treatment device and relates to the technical field of waste mineral oil treatment. The settling tank comprises a settling tank body which is placed on an outer contact surface; the lifting oil suction mechanism is connected to the interior of the settling tank body; the lifting oil suction mechanism comprises a supporting rod, a ball screw connected into the supporting rod, an oil suction pipe connected to a nut of the ball screw, an oil suction hole formed in the bottom end of the oil suction pipe and an oil discharge hole formed in the side face of the oil suction pipe. And; the waste residue filtering mechanism is connected to the lower end part of the settling tank body. By arranging the lifting oil absorption mechanism and the waste residue filtering mechanism, the problems that when existing waste mineral oil is subjected to water-oil separation, part of oil cannot be absorbed or water is absorbed during oil absorption due to changes of the water level an