Sewage pipe network inspection well accessory device

The utility model discloses a sewage pipe network inspection well accessory device. The sewage pipe network inspection well accessory device comprises a support matched with an inspection well, an anti-falling deodorization assembly and a drainage assembly arranged below the anti-falling deodorization assembly. The anti-falling deodorization assembly comprises an annular bag-shaped net layer and abearing net cover structure, the annular bag-shaped net layer comprises an upper net layer piece, a lower net layer piece and a deodorization filling layer arranged between the upper net layer pieceand the lower net layer piece, and the annular bag-shaped net layer and the bearing net cover structure are both detachably connected with the support; the drainage assembly comprises a cylindrical water inlet pipe detachably connected with the support, the upper end of the cylindrical water inlet pipe is matched with the inspection well, and a liquid seal tank arranged at the lower end of the cylindrical water inlet pipe