Multi-solution mixing device based on biotechnology research and development and convenient for sampling

The invention relates to a mixing device, in particular to a multi-solution mixing device based on biotechnology research and development and convenient for sampling. The technical problem to be solved by the invention is to provide the multi-solution mixing device based on biotechnology research and development and convenient for sampling, which has a dustproof effect and can perform automatic stirring. The technical scheme of the invention is as follows: the multi-solution mixing device convenient for sampling based on biotechnology research and development comprises a bottom plate; the number of the supporting columns is four, and the supporting columns are symmetrically installed on the two sides of the middle of the top of the bottom plate; the placing plate is mounted between the tops of the supporting columns; and the beaker is mounted at the top of the placement plate in a sliding manner. The through hole in the ball valve rotates to be not blocked by the guide pipe, at the moment, a solution flows do