Suspended pipe and automatic vegetable greenhouse

The invention provides a suspended pipe. The suspended pipe comprises an outer pipe (9a) and an inner pipe (92a). The vegetable greenhouse is equipped with the above-mentioned suspended pipe. The suspended pipe and the vegetable greenhouse provided by the invention have the advantages of low cost, application flexibility, long service life, stability, reliability and capabilities of effectively controlling respiratory action and realizing plant temperature regulation and control. 种悬管，包括外管（9a）、内管（92a）。蔬菜大棚，具有前述的悬管。本发明成本低廉、应用灵活、使用寿命长、稳定可靠、能够有效的控制呼吸作用、能够实现植物温度调控。