The Peripheral Drive Scraper and Suction Machine is mainly used for radial sedimentation tanks of about 20mDiameter of the Pool in water supply or drainage projects. This equipment adopts peripheral transmission. The sewage flows in from the water inlet pipe in the center of the pool. After being spread by the steady flow tube, it flows out evenly and radially to the periphery. The suspended sludge is deposited at the bottom of the pool after sedimentation. The driving device drives the work. The bridge rotates along the periphery and drives the scraper arm and scraper plate to rotate. The scraper collects the sludge and then uses the sludge suction pipe to suck the sludge into the sludge collection tank relying on the hydrostatic pressure in the pool. When discharged from the pool, the scum on the water surface is introduced into the slag discharge hopper through the rotating skimming device and discharged out of the pool; while the supernatant liquid overflows into the outlet water tank through the triangular outlet weir plate and is discharged.