Utility tunnel expansion joint detection drainage device

The utility model relates to a utility tunnel expansion joint drainage device which comprises prefabricated utility tunnels, a gutter channel is arranged between the prefabricated utility tunnels, the gutter channel is composed of an expansion joint between the two prefabricated utility tunnels and a plurality of water diversion strips, the expansion joint is arranged between the two prefabricated utility tunnels, and the water diversion strips are U-shaped stainless steel sheets. The multiple water diversion strips wrap the outer side of the expansion joint, a stainless steel connector is inserted into the water diversion strip located in the middle of the lower end of the prefabricated comprehensive pipe gallery, the interior of the stainless steel connector is of a cross-shaped hollow structure, a water guide pipe is arranged on the stainless steel connector, and the stainless steel connector and the water guide pipe are embedded into a groove in the ground where the prefabricated comprehensive pipe galler