Foldable three-dimensional screw type photobioreactor

The invention discloses a foldable three-dimensional screw type photobioreactor, and belongs to the technical field of microalgae culture. The foldable three-dimensional screw type photobioreactor comprises a liquid collection tank, a main shaft, light source devices and a vertical shaft wind power drive device, wherein a light reflecting layer is arranged on the inner wall of the liquid collection tank, and the liquid collection tank is used for accommodating a culture solution for microalgae culture; the main shaft is vertically installed in the middle of the liquid collection tank, and is rotatably connected with the liquid collection tank; a three-dimensional screw culture unit of which the shape is reduced according to progressive height increase is arranged on the main shaft, and thethree-dimensional screw culture unit is composed of a three-dimensional screw-shaped light guiding plate; the main shaft is provided with a trapezoidal downflow weir positioned above the three-dimensional screw culture unit,