The utility model relates to an operation and maintenance device for a box-type transformer substation environment. The utility model belongs to the technical field of operation equipment. INCLUDING AN OPERATION AND MAINTENANCE DEVICE, the outer end of the operation and maintenance device is provided with an air collection and heat dissipation assembly. The operation and maintenance device comprises an operation and maintenance device body. A display operation panel in buckled connection with the operation and maintenance device body is arranged on the end face of the operation and maintenancedevice body, a plurality of installation plates are arranged on the two side edges of the operation and maintenance device body, installation bases attached to the installation plates are arranged atthe upper end of the operation and maintenance device body, heat dissipation plates are arranged in the installation bases, and a plurality of fixing plates fixedly connected with the inner walls ofthe installation bases in an attached mode. The air purifier has the characteristics of compact structure, ventilation, heat dissipation, convenience in installation, low maintenance cost, purification, ventilation and stability in operation. The problems that parts are prone to dust collection, poor in heat dissipation performance and abraded are solved. And the monitoring and protection effectson the operation of the box-type transformer substation are achieved. Operation and maintenance are based on the technology, and higher-quality service is provided for the power transformation box through the technology. The service cycle is prolonged and the operation stability is improved.