Combined spirulina culture pond

The utility model discloses a combined spirulina culture pond, and relates to the technical field of spirulina culture. The device comprises an arc-shaped peripheral baffle, one end of the arc-shaped peripheral baffle is fixedly connected with a square peripheral baffle, arc-shaped grid nets are arranged in the arc-shaped peripheral baffle, square grid nets are arranged in the square peripheral baffle, fixing plates are arranged at the two ends of the arc-shaped peripheral baffle and the two ends of the square peripheral baffle, and fixing holes are evenly distributed in the fixing plates. Through the design of the arc-shaped peripheral baffle, the square peripheral baffle, the fixing plates, the fixing holes and other parts, the device can be disassembled into a plurality of parts, so that the device is convenient to transport, assemble and disassemble and can be assembled at will according to terrains, and therefore cultivation can be carried out in different terrains such as courtyards, buildings or roofto