The invention discloses a dry sorting machine and process of a vibration compound force field of pulverized coal. The external moisture of the pulverized coal is relatively high, in order to meet thesorting requirements, an air supply device of the sorting machine provides low-temperature hot air of 60-180 DEG C, selected materials are dried while being sorted, the viscosity between the materialsis lowered, and sorting of the fine grained materials is realized. The sorting machine sorts according to the density characteristics of the pulverized coal, adopts a high-frequency and low-amplitudeshock device to form the vibration compound force field, uses a microporous gas distributor and adopts progressive air distribution at the same time, the materials are separated and layered under theconditions of the vibration compound force field and progressive air distribution, and materials with different densities move in the reverse direction. A discharging device of the sorting machine isdivided into a light density discharging end and a heavy density discharging end, cleaned coal after sorting is discharged through the light density discharge end, and gangue is discharged through the heavy density discharge end. The dry sorting machine and process of the vibration compound force field of the pulverized coal has high sorting efficiency, low energy consumption, low production costand good economic benefits.