Movable skimming device for efficient sedimentation tank

The utility model provides a movable skimming device for an efficient sedimentation tank. The movable skimming device comprises a skimmer, a sliding guide rail and a linkage motor, wherein the sliding guide rail is connected with the skimmer in a sliding manner; the linkage motor is used for controlling the working state of the skimmer; the inner side and the outer side of the efficient sedimentation tank are respectively provided with a slag discharge channel and a slag discharge well, the slag discharge channel is communicated with the slag discharge well through a communication pipeline, and the slag skimmer can be used for collecting pollutants in the pre-sedimentation area of the efficient sedimentation tank and discharging the pollutants out of the efficient sedimentation tank through the slag discharge channel and the slag discharge well. The linkage motor is used for controlling the skimmer to move in the sliding guide rail so as to regulate and control the height of the skimmer in the sedimentation t