The embodiment of the invention discloses a pipeline emergency fixed-point oxygen delivery device system in a building. According to the pipeline emergency fixed-point oxygen delivery device system in the building, an comfortable positive-pressure ventilating and oxygen delivery gas source is provided for trapped persons in time by performing fixed-point delivery on a clean gas source in a high-rise building; a comfortable positive-pressure gas source is output to a positive-pressure gas tank and a positive-pressure metal pressure air pipeline which are connected with each other by a high-positive-pressure gas tank and a dust filter tank through high-pressure and high-speed delivery of a high-positive-pressure metal pressure air pipeline; a control module for automatically monitoring the region by using an Internet-of-Things sensor and starting a gas collecting tank motor in a gas collecting chamber in real time by alarm information through the Internet-of-Things sensor is added; the initiative of automatic and intelligent monitoring is improved; the quality of fixed-point positive-pressure ventilating oxygen delivery in the building in demand is guaranteed.