Fire extinguishing system of dangerous and old building

The embodiment of the utility model provides a fire fighting system for dangerous and old buildings, and the system comprises fire monitoring equipment which is disposed in each dangerous and old building and is used for collecting the environment data of each dangerous and old building; the fire monitoring device at least comprises a smoke sensor; the sound-light alarm equipment is deployed in each dangerous and old building; the business servers are deployed in areas to which the dangerous and old buildings belong, and communicate with the fire monitoring equipment and the sound-light alarm equipment by adopting a virtual private network; the business server is used for receiving the environment data uploaded by the fire monitoring equipment; and the central management server is communicated with each business server by adopting a public network so as to receive the fire monitoring data uploaded by each business server, and is communicated with a fire control center by adopting the public network. 本申请实施例提供了