Sampling detection device for chemical discharged sewage

The utility model relates to the technical field of sewage sampling detection, and discloses a sampling detection device for chemical discharged sewage, which comprises a working table, a groove is arranged at the top of the working table, sliding blocks are fixedly connected to the front side and the rear side of the groove, clamping blocks are fixedly connected to the tops of the sliding blocks, and the clamping blocks are fixedly connected to the top of the working table. A rack plate is fixedly connected to the bottom of the sliding block, a motor is fixedly connected to the inner wall of the bottom of the workbench, a gear is fixedly connected to the driving end of the motor, the exterior of the gear is in meshed connection with the exterior of the rack plate, a column is fixedly connected to the top of the workbench, and a detection pipe is fixedly connected to the top of the column. And the rear side of the column body is fixedly connected with an output pipe, and the exterior of the output pipe is fix