Treating equipment for domestic sewage of coal mine

The utility model provides treating equipment for domestic sewage of a coal mine, which comprises a grating well, an adjusting tank, a preliminary sedimentation tank and a simultaneous biological oxidation tank (SBOT) which are sequentially communicated along the flowing direction of sewage. The SBOT is composed of N small tanks divided along the direction perpendicular to the bottom of the SBOT, wherein each small tank is sequentially provided with an upper portion water flow channel, a carrier intercepted by an upper portion carrier interception grid and a lower portion carrier interception grid, a lower portion water flow channel close to the bottom of the SBOT from the top to the bottom, an aeration pipeline is arranged between the lower portion carrier interception grid and the lower portion water flow channel, and a sludge exhaust pipe communicated with the outside is arranged at the bottom of the SOBT. The treating equipment for the domestic sewage of the coal mine can effectively reduce content of organics, ammonia nitrogen and whole nitrogen in the domestic sewage of the coal mine, eliminates a secondary sedimentation tank and an activated sludge backflow system, greatly simplifies sewage treatment process, and reduces investment on sewage treatment equipment.