Observation device for sludge drying equipment

The invention relates to an observation device for sludge drying equipment. The observation device is arranged on a cover plate of the sludge drying equipment, and an observation hole is formed at the center of the cover plate. The observation device comprises a sight glass mechanism, a developing mechanism and an image capturing mechanism, wherein the sight glass mechanism strides across the upper part of the cover plate and is arranged to be matched with the observation hole; and the developing mechanism and the image capturing mechanism are arranged to be matched with the sight glass mechanism and are connected to a controller. According to the observation device, the problem that the manual site observation is necessary during the sludge drying processing is thoroughly solved, and the real-time working condition in the sludge drying equipment can be known without lifting up a cover, so that the working efficiency is improved, the escaping of foul gas in a working site is avoided, and the working environme