Gantry crane equipment for assisting municipal pipeline engineering construction

The utility model relates to gantry crane equipment for assisting municipal pipeline engineering construction. The gantry crane equipment comprises a load-bearing cross beam and supporting mechanisms arranged at the two ends of the load-bearing cross beam, a hoisting trolley capable of sliding along the bearing cross beam is arranged on the bearing cross beam, and a telescopic lifting hook is fixedly connected to the hoisting trolley; the supporting mechanism comprises two splayed gantry crane supporting legs, the upper ends of the gantry crane supporting legs are fixedly connected with the bearing cross beam, and the lower ends of the gantry crane supporting legs are fixedly connected with the movable cross beam; the lower portion of the movable cross beam is fixedly connected with a walking wheel set, and a gantry crane rail matched with the walking wheel set is arranged below the walking wheel set. A standard knot I, a standard knot II and a standard knot III which are sequentially stacked from top to bott