Foldable greenhouse capable of being used repeatedly

The invention discloses a foldable greenhouse capable of being used repeatedly. The foldable greenhouse comprises multiple groups of arc-shaped frameworks, wherein stand columns are hinged to the two ends of each of the arc-shaped frameworks, a mounting ring is arranged at the bottom end of the outer side wall of each stand column, a connecting ring is mounted at the top end of the outer side wall of each mounting ring, and a hinge rod is hinged to one side of each connecting ring; and a mounting block is hinged to the other end of each hinge rod, a locking bolt is arranged on each mounting block, and each mounting block is fixed to the corresponding arc-shaped framework through a corresponding locking bolt. The foldable greenhouse is provided with fixing rings, connecting pieces, the hinge rods, fixing screw holes, concentric-square-shaped sliding pipes, mounting pipes and the fixing bolts, all groups of arc-shaped frameworks are placed side by side and pulled open, all groups of hinge rods are straightened,