The utility model discloses a built-in spray clean type window of a pipeline. The built-in spray clean type window of the pipeline is installed on a flow path of a petrochemical pipeline and is capable of avoiding a cleaning procedure of the assembling and disassembling of the window so that the built-in spray clean type window of the pipeline can be conveniently used. The built-in spray clean type window of the pipeline comprises a visible window face, and a cleaning brush brushing chamber and a hot-water washing chamber which are respectively installed at two sides of the visible window face. A vent nozzle and a first pipeline joint are arranged in the cleaning brush brushing chamber, and cleaning brushes are installed inside the cleaning brush brushing chamber and are connected with a function lever. The hot-water washing chamber is provided with a second pipeline joint, a spray pipe which is provided with spray holes is installed inside the hot-water washing chamber, and the hot-water spray pipe is connected with a high pressure hot-water pipeline. The built-in spray clean type window of the pipeline is provided with a double cleaning function and effectively solves the inner cleaning problem of the window. Meanwhile, due to the double cleaning mode, cleaning quality is ensured, time and manpower are saved for actual production, labor intensity is relieved and normal operation of a delivery pipeline is guaranteed.