Alternating-current metal-enclosed switchgear

The invention discloses alternating-current metal-enclosed switch equipment which comprises an equipment shell, a sealing cover is arranged at an opening in the upper end of the equipment shell, the upper end of the equipment shell is an opening, the sealing cover has a sealing effect on the opening in the upper end of the equipment shell, the sealing cover is in a closed state in a normal state, and when inner side devices need to be replaced or overhauled, the sealing cover can be opened; compared with maintenance or replacement by opening a front door, the operation is greatly simplified; the lower end of the sealing cover is fixedly connected with a loading cavity, the loading cavity plays a role in loading the draught fan, the air scattering pipe fitting and the moisture absorption plate, the draught fan, the air scattering pipe fitting and the moisture absorption plate are integrated, operation such as overhaul and replacement is further facilitated, airflow is evenly scattered out along the air scatter