NOVELTY - A biomass three-phase separator device comprises a tank with tank body comprising outer cylinder, inner cylinder and return cylinder. The inner cylinder set in the outer cylinder and is connected to the bottom of the outer cylinder. The return cylinder is set in the external cylinder and the inner cylinder. The return cylinder is connected with the top of outer cylinder. The return cylinder and the inner cylinder are staggered at the external cylinder. The inner cylinder having water gap is connected with the inverse cylinder and the upper part of the core body is equipped with a biomass.    USE - Biomass three-phase separator device used for treating organic wastewater.    ADVANTAGE - The device has simple and compact structure, low manufacturing cost, low energy consumption and small investment. It reduces the use of chemical agents, reduces the processing cost, and increases the treatment effect.    DETAILED DESCRIPTION - A biomass three-phase separator device comprises a tank with tank body comprising outer cylinder, inner cylinder and return cylinder. The inner cylinder set in the outer cylinder and is connected to the bottom of the outer cylinder. The return cylinder is set in the external cylinder and the inner cylinder. The return cylinder is connected with the top of outer cylinder. The return cylinder and the inner cylinder are staggered at the external cylinder. The inner cylinder having water gap is connected with the inverse cylinder and the upper part of the core body is equipped with a biomass. The inner cylinder is set at the lower part of micro-aeration head. A water inlet pipe is connected with the inner cylinder lower part. The triangle fluid director is set above the biomass core device of the internal reflux cylinder. Two sides of the top of the return part is set with foam removing oil. Oil discharging tube is connected with oil skimmer. Annular biomass filter is set on the outer cylinder and the return cylinder. The annular biomass filter part is provided with an annular micro-aeration device. The annular micro-aeration device and the micro-aeration head are connected with an air blower. The outer cylinder of the outer top is provided with an overflow groove. Drain pipe is connected with the overflow groove. Discharging pipe is connected with the outer cylinder.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic view of the biomass three-phase separator device.