Microalgae culturing system with ventilation function and capable of adjusting illumination in multiple directions

The invention discloses a microalgae culturing system with a ventilation function and capable of adjusting illumination in multiple directions. The system comprises a culturing rack body and a gas storing tank, wherein clapboards are arranged in the culturing rack body at equal intervals, and divide the culturing rack body into partition spaces at equal intervals; illuminating lamp tubes, panel lamps and microalgae culturing vessels are arranged in each partition space; the microalgae culturing vessels are communicated with the gas storing tank through connecting pipes; a gas-outlet end of the gas storing tank is sequentially connected with a first gas flow meter and a gas-inlet end of a gas filter through a connecting pipe; a second gas flow meter is arranged between a gas-outlet end of the gas filter and the microalgae culturing vessel. When the system provided by the invention is used for culturing microalgae, growth of the microalgae is facilitated, and different carbon dioxide concentrations can also be