Oil field wastewater sampler

The utility model discloses an oil field wastewater sampler which comprises a shell, a sample feeding device is fixedly connected to the center of the upper end of the shell, and water inlet pipes B are fixedly connected to the two sides of the sample feeding device; the water inlet pipe B is movably connected with a water stop valve; a plurality of bearing plates are movably connected to the lower end of the inner wall surface of the shell, and a container A is fixedly connected to the bearing plates; a water inlet pipe A is movably connected to the container A, the upper end of the water inlet pipe A penetrates through a water pump and is fixedly connected with the water pump, and the water pump is fixedly connected with the upper end of the wall surface of the shell; adjusting wheels are correspondingly and fixedly connected to the upper end and the lower end of the inner wall of the shell, and the two corresponding adjusting wheels are movably connected through a transmission chain. A supporting rod is fi