Method and device for treating sewage through combination of suspended filler floating bed and soil infiltration system

The invention provides a method and a device for jointly treating sewage by using a suspended filler floating bed and a soil infiltration system, and the method comprises the following steps: S1, enabling breeding sewage to pass through a hydrolysis tank and then pass through the suspended filler floating bed, enabling effluent to pass through a sedimentation tank, and enabling the sewage of the suspended filler floating bed to flow back to the suspended filler floating bed for secondary treatment; s2, the sewage in the sedimentation tank flows back to a hydrolysis tank; s3, effluent of the sedimentation tank enters a soil subsurface infiltration system. The system provided by the invention is beneficial to further enhancing the effects of nitrogen and phosphorus removal and suspended matter removal, and solves the problems that the dissolved oxygen content of inlet water and sewage in the system is too low, the growth of nitrifying bacteria is not facilitated, the effective volume utilization rate of the sys