Storage tank convenient for dirt cleaning

According to the technical scheme, the storage tank convenient for dirt cleaning is characterized in that the storage tank comprises a tank body, an adjusting column is rotated to extrude an adjusting frame, then the extruded adjusting frame can drive a connecting frame to move downwards, and at the moment, the connecting frame moves to drive a plurality of first adjusting plates to move downwards; a plurality of adjusting blocks on the side edge of a first adjusting plate can extrude a plurality of adjusting blocks on the side edge of a second adjusting plate, then the second adjusting plate can transversely move and extrude a plurality of first springs, and at the moment, the moving second adjusting plate can drive a fixing shell and a scraping strip to move through a plurality of positioning columns; after the steps are completed, a worker uses a driving assembly to drive a connecting pipe and the multiple scraping strips to rotate to scrape dirt on the inner wall of the tank body, so that the dirt on the