Water inlet device of buried sewage treatment system

The invention discloses a water inlet device of a buried sewage treatment system. The water inlet device comprises a water inlet device shell, a sealing cover, a water inlet, a sewage filtering frame, a first filtering plate, a fixing plate, a first filtering net, a threaded rod, a meshing wheel, supporting legs, a second filtering net, a first drainage pipe, a supporting plate, a second drainage pipe, a buffer pipe, a second filtering plate, a stirrer shell, a driving wheel, a first motor, a second motor, a connecting pipe, stirring blades, a built-in plate, an indwelling hook, a control box, a control module, a control panel, a pressure gauge and an auxiliary pipe. The built-in plate and the indwelling hook improve the filtering effect of the sewage filtering frame, and the first filtering plate increases the filtering area of the sewage filtering frame; the stirring blades can accelerate flowing of sewage, the fixing plate and the second filter plate can support the stirrer shell, and the second motor and