Anti-streaming H-shaped steel joint for diaphragm wall

The utility model relates to an underground diaphragm wall construction device, in particular to an underground diaphragm wall detour-flow-preventing H-shaped steel connector, which aims to solve the problem of concrete detour flow of an underground diaphragm wall, enable concrete of a post-construction groove section to be tightly combined with the H-shaped steel connector, reduce water seepage paths of the underground diaphragm wall, effectively solve the problem of water leakage of the underground diaphragm wall connector and achieve the purpose of safe production. The H-shaped steel comprises a wing plate and a web plate, an anti-streaming baffle is welded to the top of the web plate, an anti-streaming reinforcing mesh is welded to the bottom of the web plate, an anti-streaming iron sheet is welded to the outer side of the edge of the wing plate, the wing plate and the web plate are located between a pit bottom line and a groove bottom line, and L-shaped reinforcing ribs are welded to the inner connecting