Gravel screening device for deep well aeration

The invention provides a gravel screening device for deep well aeration, and the gravel screening device for deep well aeration comprises a box body, a filter frame, a back plate and a driving assembly. The back plate is hinged to the back face of the box body, the driving assembly is arranged on the back plate, and the filtering frame is in linkage connection with the driving assembly. The filter frame comprises a filter grid I and a filter grid II. And the middle parts of the filtering grid II and the filtering grid I are hinged with each other. According to the gravel screening device for deep well aeration, the arranged box body, the arranged filtering frame, the arranged back plate and the arranged driving assembly are matched with one another. By means of the opening and closing of the filter frame, two screens which are not located on the same plane can be presented, so that when filtered water is poured into one of the two water inlets, the filter frame is rotated, a part of the screens are aligned wi