Vacuum meter negative pressure backwashing system

The utility model discloses a vacuum meter negative pressure backwashing system which comprises a raw water tank, a water inlet and a water outlet are arranged on the raw water tank, a water purification cavity is formed in the raw water tank, a filter piece is arranged in the water purification cavity, a drain outlet is arranged at the bottom of the raw water tank, and a water outlet is arranged at the bottom of the raw water tank. The water purifier is characterized in that the water outlet is connected with a backwashing assembly for injecting purified water into the purified water cavity, and the water outlet is connected with a water outlet pipe. The intelligent water purification equipment has the following advantages and effects that backwashing is controlled to ensure that the filter assembly is maintained at stable water production flux for a long time, so that the whole intelligent water purification equipment is more reliable and safer in operation, the service life of the filter assembly is prolon