Pipeline view window without needing to be disassembled and washed

The utility model belongs to a pipeline view window without needing to be disassembled and washed, which is used for monitoring the use of media in a pipeline, is suitable for various concentrated transmission pipelines in petrochemical industry, and not only is convenient for observing the physical property change of a fluid in the pipeline, but also can be prevented from being disassembled and washed repeatedly. The pipeline view window comprises a view window formed by a view window sleeve and a view tube, wherein pipeline connecting assemblies are connected at the two ends of the view window, the outer end of a three-way tube of the pipeline connecting assembly is provided with a scraping and washing mechanism, and the view window can be cleaned by the scraping and washing mechanism. The pipeline view window has the advantages that design is simple, the manufacture cost is low, the operation is easy, dirt and scale on the inner wall of the view window can be conveniently scraped, and the pipeline view win