Sleeve-type photo-bioreactor

The invention discloses a sleeve-type photo-bioreactor comprising a pipe fitting and flanges respectively arranged at the two ends of the pipe fitting, wherein a liquid inlet pipe is arranged on the flange at one end of the pipe fitting, and a liquid outlet pipe is arranged on the flange at the other end of the pipe fitting; the pipe fitting is a transparent sleeve and comprises a transparent outer pipe and a transparent aeration pipe which is arranged in the transparent outer pipe and is coaxial with the transparent outer pipe; an exhaust pipe is arranged on the top of the transparent outer pipe, and a row of aeration holes are formed along the axial direction on the pipe wall of the transparent aeration pipe and are positioned on the pipe wall of the oblique lower part of the transparent aeration pipe; and an air inlet pipe is arranged at one end of the transparent aeration pipe. The photo-bioreactor disclosed by the invention can overcome the defects and shortcomings of the conventional photo-bioreactor, i