Chemical air pressure water pipe dredging device

The invention discloses a chemical air pressure water pipe dredging device. The chemical air pressure water pipe dredging device comprises an upper cover, an elastic assembly and a base; the upper cover is supported on the base by the elastic assembly; the upper cover is provided with a first inner cavity body which is used for placing of a vinegar bag; the upper cover is provided with a bottom plate; a cutter hole and a leak hole are formed in the bottom plate; the base is provided with an outer ring part and an inner ring part, and a lower plate and an annular wall of the inner ring part form a second inner cavity body which is used for placing of soda powder; a cutter which corresponds to the cutter hole and is used for puncturing the vinegar bag is fixed on the lower plate of the innerring part; and the top of the upper cover is pressed, so that the upper cover moves downward, the cutter punctures the vinegar bag, acetic acid flows into the second inner cavity body from the leak hole and makes contact wit