Toilet same-floor drainage device

The same-floor drainage device comprises a floor drain pipe, the floor drain pipe is connected into a same-floor drainage pipe through a three-way pipe fitting, the same-floor drainage pipe is located below the floor drain pipe, and nylon mesh gauze is fixedly arranged at a drainage opening of the same-floor drainage pipe; the same-layer drainage pipe is provided with a leveling surface which is inclined towards a drainage port of the same-layer drainage pipe, and the upper part of the leveling surface is backfilled with fine sand to form a sand filtering water layer; the nylon mesh gauze filter port is smaller than the fine sand; ceramsite is adopted for backfilling between the sand filtering water layer and the pipe opening of the floor drain pipe, a ceramsite backfilling layer is formed, the effect of effectively preventing sewage leakage of a toilet can be achieved, and the possibility of unnecessary maintenance is reduced to a great extent. 本实用新型涉及一种卫生间同层排水装置，包括地漏管，所述地漏管通过三通管件接入同层排水管，所述同层排水管位于地漏管下方，同层排水管