Water surface foldable emergency-built runway

A water surface foldable emergency-built runway, comprising a storage box, and further comprising:

• a folding runway, being made of a flexible material and provided in the storage box, and having an unfolding state when an interior is filled with internal filling gas to support an aircraft and a folding state when the interior is in vacuum;
• a recovery apparatus, being provided in the storage box and connected with the folding runway to push the folding runway out of the storage box when it is necessary to be unfolded, and then recover the folding runway into the storage box after being folded;
• a contractile apparatus, being provided on the folding runway to assist the folding runway to be in the unfolding state and the folding state respectively;
• an inflation apparatus and an evacuation apparatus, being provided in the storage box, sealedly connected with the folding runway through a pipeline, wherein the inflation apparatus is mounted on an inflation pipeline and communicated with the interior of the folding runway to inflate the folding runway to the unfolding state through the inflation pipeline, and the evacuation apparatus, arranged to deflate the folding runway to the folding state, is connected with one end of the exhaust valve through an exhaust pipeline, and the other end of the exhaust valve is connected with the inflation pipeline;
• and
• an anchor chain recovery and launch coiler, an anchor chain and an anchor, being provided at a bottom face of the folding runway to fix the folding runway in the unfolding state into position in water.