Reinforcing structure for underground pipeline

The utility model relates to the technical field of underground pipelines, in particular to a reinforcing structure for an underground pipeline. According to the technical scheme, the device comprises a bottom plate, a protection mechanism and a reinforcing mechanism, a protection box is fixedly installed in the center of the top of the bottom plate, the reinforcing mechanism is fixedly installed on one side in the protection box and comprises a second air pump, a conveying pipe is fixedly installed on one side of the second air pump, a hollow base is fixedly installed at the bottom end of the conveying pipe, and suction cups are installed at the bottom of the hollow base at equal intervals. Rainwater in the rainwater tank is detected through power-on operation of the rainwater sensor, after the rainwater sensor monitors a rainwater electromagnetic signal, the first air pump is controlled through the wire to be powered on and operate to generate suction force, external air is conveyed into the three-way pipe