Back flush bag filter falls in self -immersing

The utility model discloses a back flush bag filter falls in self -immersing, including cartridge filter, sewage storage jar, filter the skeleton and crossing the filter bag, the cartridge filter includes barrel, first ring flange and first draw -in groove, and the bottom of barrel is opened wide, leakage fluid dram intercommunication clean water pipe and back flush pipe on the roof, the sewage storage jar includes a jar body, second ring flange and second draw -in groove, and a jar body top is unlimited, has seted up the drain on the bottom plate, has seted up the inlet on the curb plate, drain intercommunication blow off pipe, inlet intercommunication honeycomb duct, the activity of filtration skeleton sets up between the internal groove sidewall of the internal groove sidewall of firstdraw -in groove and second draw -in groove, filters the skeleton and is the bagged structure that open side down, cross the filter bag movable sleeve and locate the filtration skeleton outside, lie inthe internal groove sidew