Erythritol crystal screening equipment

The utility model provides erythritol crystal screening equipment which comprises a first screening mechanism, a second screening mechanism and a third screening mechanism which are sequentially distributed from top to bottom, and the first screening mechanism, the second screening mechanism and the third screening mechanism are detachably connected. The first screening mechanism, the second screening mechanism and the third screening mechanism each comprise a mechanism body, a vibrator, a conveying motor and a conveying filter screen are arranged on each mechanism body, a discharging guide groove is formed in one end of each mechanism body, and a collecting device is arranged below each discharging guide groove. The pore diameters of the conveying filter screens of the first screening mechanism, the second screening mechanism and the third screening mechanism are sequentially reduced, and the conveying filter screens are used for screening erythritol particles with different diameters; the end, away from the