Municipal road pipeline protection structure and construction method thereof

The invention relates to a municipal road pipeline protection structure and a construction method thereof, and relates to the field of municipal road pipeline installment, the municipal road pipeline protection structure comprises a supporting assembly and a buffer assembly, the supporting assembly comprises a supporting plate, two side plates and a top plate, the supporting plate is installed at the bottom of a ditch, and the top plate is installed at the bottom of the ditch; the two side plates are located on the two sides of the pipeline, the side plates are fixedly connected with the supporting plate, the two ends, in the width direction, of the top plate are slidably connected with the two side plates correspondingly, and a mounting cavity used for mounting the pipeline is defined by the supporting plate, the side plates and the top plate; the buffering assembly comprises a buffering air bag with the annular section, the buffering air bag is located in the mounting cavity and arranged on the pipeline in