Cross-belt sorting machine and cross-belt sorting system based on three-dimensional spiral track

The invention discloses a crossed-belt sorting machine and a crossed-belt sorting system based on three-dimensional spiral orbits, a rail unit of the crossed-belt sorting machine comprises a first spiral rail and a second spiral rail which are arranged in the height direction, and high-position connectors and low-position connectors of the two spiral rails communicate with each other, so that the two spiral rails communicate with each other to form a closed rail; then, the part, arranged between the two low-position connectors of the closed track, beside the feeding machine table, and the discharging grid openings are arranged on one side or two sides of the first spiral track and/or the second spiral track; the sorting trolley is configured to circularly walk on the closed track; a track unit of the cross-belt sorting machine is formed by communicating two three-dimensional spiral tracks, one track is an ascending track, and the other track is a descending track; and then, the discharging grid openings can b