Auxiliary device for opening working well lid

The invention discloses an auxiliary device for opening a working well lid. The auxiliary device comprises a rack, wherein a mounting table driven by a first power plant is vertically mounted on the rack in a sliding manner; a rotary disc driven by a second power plant rotates on the mounting table; a dust loosening mechanism is mounted above the rotary disc in a sliding manner, is distributed onthe circumference of the rotary disc and extends downwards; a dust cleaning mechanism is arranged on the dust loosening mechanism; and a well lid shaking mechanism driven by a third power plant is arranged below the mounting table. Compared with traditional manual opening, the auxiliary device greatly lowers the labor strength of working staff and the well lid opening difficulty, costs less time,is high in well lid opening efficiency, ensures fast repairing and maintenance and normal electric power supply of a power grid system, does not cause any damage to the well lid body, ensures the service life of the well lid,