Humidity-adjustable greenhouse

A humidity-adjustable greenhouse is characterized in that a skylight formed in a top cover comprises a moving opening, a main rotary shaft, an upper glass panel and a lower glass panel; the upper and lower sides of the main rotary shaft are respectively hinged to the upper glass panel and the lower glass panel; the other sides of the upper glass panel and the lower glass panel are connected with the driving end of a motor by fixing bolts; the motor is connected with a power supply circuit by a controller comprising a metal shell, an input power cord, an output power cord and a water collector; an input conductive plate and an output conductive plate respectively connected with the input power cord and the output power cord are oppositely arranged in the metal shell up and down; the back of the input conductive plate is connected with the water collector by a lever. Due to the design, cooling is performed in a ventilation mode when the indoor humidity is larger, the structure is simple, the practicability is h