Explosion-proof cofferdam special for LNG box type integrated sledge

The utility model discloses a special explosion-proof cofferdam for an LNG (liquefied natural gas) box-type integrated sledge, which comprises two transverse plates and two longitudinal plates which are fixedly connected with a bottom plate and are vertically arranged, the transverse plates and the longitudinal plates are sequentially connected to form a cofferdam body, and a liquid adding machine, a pump station and corresponding pipelines connected with a storage tank are enclosed in the cofferdam body. An angle-adjustable telescopic outer support is constructed on the outer surface of the cofferdam body, the lower end of the telescopic outer support is connected with the bottom plate, an angle-adjustable elastic inner support is constructed on the inner surface of the cofferdam body, and the end, away from the cofferdam body, of the elastic inner support is detachably connected to the surface of corresponding equipment. The pump station, the liquid adding machine, the air compressor, the corresponding pipe