Wastewater filtering device with detachable filter screen

The utility model relates to a wastewater filtering device with a detachable filter screen, which comprises a fixed base and a filtering assembly, a filtering box is fixedly mounted at the top of the fixed base, and an auxiliary mechanism connected with the filtering assembly is arranged in the filtering box. According to the wastewater filtering device with the detachable filter screen, a nut is arranged, a hydraulic rod runs and extends to drive connecting blocks to move upwards, so that the two connecting blocks drive a box cover to be separated from a filtering box, then the nut is rotated to be separated from a threaded ring outside a fixing rod in a threaded mode, and then a filtering assembly is pulled to slide outside the fixing rod through a sliding block; a sliding block slides back and forth outside a fixed rod through the impact force of the wastewater and the resilience force of a spring, so that a coarse filter plate and a fine filter plate can shake back and forth to filter the wastewater, the