Submersible adjusting device

The invention discloses a submersible adjusting device. The submersible adjusting device comprises a working chamber, an upper float chamber, a leveling chamber and a lower float chamber which are sequentially arranged from top to bottom, wherein an air inlet and exhaust opening is formed in the lateral wall of the working chamber; the working chamber comprises a switch bolt plug, a first rocker arm, a second rocker arm, a first push rod, an air pump and a diaphragm; the upper float chamber comprises an upper cylindrical cage, an upper float and a second push rod; the leveling chamber comprises upper extending pipes and a middle float; the outer diameters of every two upper extending pipes are different, and the lengths of every two upper extending pipes are different; the lower float chamber comprises lower extending pipes and a lower float; a water inlet and outlet opening is formed in the bottom surface of the lower float chamber; a lower cylindrical cage which communicates with thewater inlet and outlet o