The invention provides a device special for collecting gypsum powder. One end of a feeding soft pipe (1) communicates with an air inlet of a first-stage cyclone dust collector (2), an air outlet of the first-stage cyclone dust collector (2) communicates with an air inlet of a second-stage cyclone dust collector (3) through a pipeline, and a dust removing port of the first-stage cyclone dust collector (2) is connected with a feeding port of a star-shaped discharger (5); and an air outlet of the second-stage cyclone dust collector (3) communicates with a wind inlet of a Roots blower (4) through a pipeline, the top of an air-material mixing bin (6) is connected with a discharging port of the star-shaped discharger (5), and the two ends of the air-material mixing bin (6) are connected with a wind outlet of the Roots blower (4) and one end of a discharging soft pipe (7) correspondingly. The device special for collecting the gypsum powder has the advantages that by using the device special for collecting the gypsum powder, collecting gypsum powder paved in a bin can be quickly collected, the production speed is quicken, and required staff for collecting operation is reduced; meanwhile, by using the device special for collecting the gypsum powder, flying dust generated during collecting can be avoided, and physical damages on operating workers are reduced.