Energy-saving automatic building control system

The energy-saving automatic building control system comprises an air outlet box, the inner wall of the top end of the air outlet box is tightly connected with an air inlet pipe, the air inlet pipe is connected with an external air conditioner ventilation pipeline, a linkage mechanism is arranged in the air outlet box, a humidifying mechanism is arranged on one side of the air outlet box, and an auxiliary cleaning mechanism is arranged at the bottom end of the air outlet box. The humidifying mechanism comprises two baffles, an air inlet is formed in the connecting position of the top end of the air outlet box and the air inlet pipe, the two baffles are attached to the bottom end of the air inlet, limiting sliding blocks are fixedly connected to the outer walls of the bottom ends of the two baffles correspondingly, and gear rings are attached to the bottom ends of the two baffles at the same time. A ventilation opening is formed in the center position of the gear ring, two arc-shaped limiting sliding grooves ar