Multifunctional drainage bottle

The invention relates to the technical field of drainage and particularly relates to a multifunctional drainage bottle. The multifunctional drainage bottle comprises a consumption part, a universal part and an assembly plate, wherein the consumption part comprises a bottle body, a connecting pipe is arranged at the top of the bottle body, and a rubber sleeve is arranged at the opening of the connecting pipe; a cock body is arranged at the end part of the rubber sleeve, is used for applying a radial force toward the inner wall of the connecting pipe to the rubber sleeve, and is fixed through the elastic restoring force of the rubber sleeve; the universal part comprises a ranging device which is provided with an assembly surface vertical to a ranging direction, and a seal pipe is arranged onthe assembly surface; the assembly plate is parallel to the assembly surface, and an assembly hole having a diameter the same as that of the connecting pipe is formed in the assembly plate; and the connection of the consumpt