Pre-buried device for preventing water leakage of underground structure

The utility model discloses a water leakage prevention pre-buried device for an underground structure, which comprises an underground building structure, a waterproof plate and a plurality of grouting pipes, and the underground building structure comprises an enclosure structure and a main body structure; the waterproof plate is arranged on the side, facing the enclosure structure, of the main body structure and located between the enclosure structure and the main body structure. The multiple grouting pipes penetrate through the main body structure and the waterproof plate at intervals, and part of the structures of the grouting pipes are exposed out of the main body structure. According to the technical scheme, after construction of the underground building structure is completed, if leakage occurs, external grouting can be directly conducted on a water leakage point through the grouting pipe at the position of the water leakage point, finally, a waterproof curtain is formed between the waterproof plate and