The invention discloses a multi-layer spiral pipe for roadway wiring. The multi-layer spiral pipe is characterized by comprising an inner pipe, a liner pipe and an outer pipe; the inner pipe is sleeved with the liner pipe and coaxial with the liner pipe, the liner pipe is sleeved with the outer pipe and coaxial with the outer pipe, inner-pipe outer spiral sheets are connected to the outer lateral side of the inner pipe, liner-pipe inner spiral sheets screwed between the inner-pipe outer spiral sheets are arranged on the inner face of the liner pipe, liner-pipe outer spiral sheets are connected to the outer lateral side of the liner pipe, outer-pipe inner spiral sheet screwed between the liner-pipe outer spiral sheets are connected to the inner lateral side of the outer pipe, and an electric cable is arranged in the inner pipe. According to the multi-layer spiral pipe, the three longitudinal shells of the inner pipe, the liner pipe and the outer pipe are arranged, the spiral sheets are arranged between the three longitudinal shells for supporting, high-strength supporting can be provided during external force pressing, and deformation is reduced; the space between gaps can absorb the deformation, the probability of deformation of the inner pipe is reduced, and the reliability of the electric cable is improved; meanwhile, due to the arrangement of the spiral sheets, the pipe can be easily bent, and the pipe can be more conveniently distributed in a roadway.