Anti-reverse floor drain

The utility model relates to the technical field of floor drains, in particular to an anti-reverse floor drain which comprises a base of a hollow structure, a connecting pipe is arranged below the base, the base and the connecting pipe are of an integrally-formed structure, a telescopic pipe is tightly bonded to the lower portion of the connecting pipe, and a drain pipe is arranged at the end, away from the connecting pipe, of the telescopic pipe. A connecting cover is tightly adhered to the sewer pipe; a turnover mechanism is arranged in the base; according to the anti-reverse floor drain, through the arranged turnover mechanism, accumulated water on the indoor ground can be drained in time; meanwhile, an anti-reversion mechanism is arranged, that is, when sewage enters the connecting pipe, under the buoyancy action of the floating ball, the first magnetic ring is separated from the second magnetic ring, the bottom end of the movable shaft is separated from the groove, the sewage enters the telescopic pipe a