Slide type vertical multi-level express sorting system and express sorting method

A slide type vertical multi-level express sorting system comprises a shell, a spiral slide and multiple sorting units. The multiple sorting units are arranged in an inner cavity of the shell at intervals from top to bottom, and collection bag falling channels of all the sorting units sequentially communicate from top to bottom to form a continuous collection bag discharge channel. The spiral slideis arranged in the collection bag discharge channel to receive collection bags discharged from collection bag discharge ports of the sorting units. An express sorting method is applied to the slide type vertical multi-level express sorting system and comprises the following steps that 1, sorting unit sets are divided; 2, parcels enter corresponding bagging output devices through a sorting path; 3, the parcels are bagged and output; and 4, the collection bags are discharged by the spiral slide. The multiple sorting unit sets which operate independently and do not interfere with one another canbe divided according to n