The invention relates to a monitoring device used for a smart pipe gallery and with a dust removal function. The monitoring device comprises a top plate, a damping mechanism, a connecting plate, a connecting pipe, a camera, a protective shell, a dust removal mechanism and two supporting rods, the dust removal mechanism comprises a dust removal assembly and two rotating assemblies, the dust removalassembly comprises a scraper and two connecting units, the damping mechanism comprises a damping assembly and two heat dissipation assemblies, the damping assembly comprises a fixing plate and two damping units, and each damping unit comprises a damping rod, a second spring and a sliding block. According to the monitoring device used for the smart pipe gallery and with the dust removal function,through the dust removal mechanism, the dust removal function of the protective shell is realized, and the phenomenon that because dust is adhered to the protective shell, the shooting effect of the camera is influenced is avoided; and through the damping mechanism, the damping function of the connecting plate is achieved, and thus shaking of the camera is reduced, and the phenomenon that becausethe shaking is too large, the normal work of the camera is affected is avoided.