Multifunctional closed cooling tower

The invention discloses a multifunctional closed cooling tower which comprises a cooling tower body. Cooling pipe sets are installed in an inner cavity of the cooling tower body and comprise the first cooling pipe set and the second cooling pipe set, the first cooling pipe set and the second cooling pipe set are located in the middles of two chambers of the cooling tower body respectively and are each communicated with a heat exchange box, and the number of the heat exchange boxes is two. A transverse partition plate is installed in each heat exchange box and divides an inner cavity of the heat exchange box into a heat absorption cavity and a heat release cavity which are arranged up and down, and a plurality of vertical vacuum heat conduction pipes are installed in each heat exchange box. The multifunctional closed cooling tower can cool two media at the same time and can be applied to the situation that the inlet and outlet temperatures of the two media and the spraying water temperatures are different; hea