The utility model discloses a vertical cyclone separator which comprises a driving hollow shaft body, an inlet pipe, an inlet cavity, a cylindrical separating cavity, a separating vane, a separating cone, a sand setting section, a sand discharging section, an overflow pipe and a separator fixed stand, wherein the upper part of the driving hollow shaft body is connected with a belt pulley, and themiddle part thereof is connected with a self-aligning bearing; the driving hollow shaft body, the cylindrical separating cavity, the separating cone and the sand setting section are connected downwards in sequence by bolts; the separating vane is welded on the cylindrical separating cavity; the sand discharging pipe is connected with a lower bearing body by a bolt; the sand setting section is connected with a lower thrust bearing; the lower bearing body is connected with the separator fixed stand; and the overflow pipe is connected with the separator fixed stand by a clamping trough. The vertical cyclone separator has simple structure, the separating vane and the separating cone are used for secondary separation on solid/fluid mixture, thus leading to high efficiency; and simultaneously, aplurality of separating vanes can increase the treatment quantity; in addition, the vertical cyclone separator has the advantages of low energy consumption and less environment pollution, and is applicable to occasions needing solid/fluid separation.