Spherical superficial layer medium filter

The utility model discloses a spherical superficial layer medium filters, which comprises a group of spherical superficial layer medium filter bodies, a water inlet main pipe, and a water outlet main pipe; each spherical superficial layer medium filter body comprises a spherical casing and a single filtering medium arranged in the spherical casing; a water inlet is formed in the top of each casing, and a water outlet is formed in the bottom; the water inlets of the group of spherical superficial layer medium filter bodies are communicated with a water inlet main pipe; the water outlets of the spherical superficial layer medium filter bodies are communicated with a water outlet main pipe; a back washing sewage discharging pipe is arranged at the communication position of the water inlet main pipe and the water inlets. The spherical superficial layer medium filter, disclosed by the utility model, has a simple structure, and can flexibly design the arrangement of the filtering units according to the actual land usage situation; the operation cost is low, and the filtering effect is good.