NOVELTY - Two-phase integrated anaerobic digesting process for treating solid biomass waste, comprises introducing solid waste in a hydrolyzation and acidification unit at 32-38 degrees C and pH 6.5-7.5 and uniformly stirring, where a hydrolyzed acidification liquid of the hydrolyzation and acidification unit refluxes to a methane generating unit via an acidification liquid refluxing unit. The hydrolyzation and acidification unit is a second sealed reactor having a liquid discharging hole and located on the inner top of the first sealed reactor, and the methane generating unit is a first sealed reactor.    USE - The method is useful for treating solid biomass waste by two-phase integrated anaerobic digesting process.    ADVANTAGE - The method respectively enables the microorganism clusters for generating acid and methane to develop degrading functions of their own in a reactor and hence the cooperative effect between the same can be enhanced, such that: the solid-gas settlement separating function is improved, the investment for the device and the space occupied by the process is reduced, the starting time is shortened and the operation is more stable and can be controlled easily.    DETAILED DESCRIPTION - Two-phase integrated anaerobic digesting process for treating solid biomass waste, comprises introducing solid waste in a hydrolyzation and acidification unit at 32-38 degrees C and pH 6.5-7.5, uniformly stirring, where a hydrolyzed acidification liquid of the hydrolyzation and acidification unit refluxes to a methane generating unit by an acidification liquid refluxing unit. The hydrolyzation and acidification unit is a second sealed reactor having a liquid discharging hole. The methane generating unit is a first sealed reactor. The second sealed reactor is located on the inner top of the first sealed reactor and under the liquid discharging hole and the bottom of the second sealed reactor is connected to the anaerobic particle sludge. An INDEPENDENT CLAIM is also included for a device for realizing the two-phase integrated anaerobic digesting process for treating solid biomass waste, comprising a container body (15), where a ventilator (1) is opened on the top cover (2) of the container body. A hydrolysis acidification roller (3) is arranged on the inner top of the container body and is a cylinder which is closed at both ends and roller through holes (4) are opened on the cylinder wall. A rotating shaft is arranged on the central shaft of the hydrolysis acidification roller along the length direction of the cylinder, in which the two ends of the rotating shaft are arranged on the side wall of the container body and controlled by an electric motor. A refluxing water collecting pipe is arranged under the hydrolysis acidification roller, in which the refluxing water collecting pipe is connected with a refluxing pipe, which is located at the outside of the container body. A refluxing pump is arranged on the container body and the other end of the refluxing pipe is connected with a refluxing water distributing pipe, which is located on the bottom of the container body.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic representation of the device for realizing two-phase integrated anaerobic digesting process.    Ventilator (1)    Top cover (2)    Hydrolysis acidification roller (3)    Through holes (4)    Container body (15)