The invention discloses a pulverized coal warehousing system. The pulverized coal warehousing system comprises at least three pulverized coal bins. The bin roof of each pulverized coal bin is connected to a bin roof distribution spiral connected to a grinding machine system. Each pulverized coal bin is provided with a safety protection device and a safety detection device, wherein the safety detection device is used for detecting the pulverized coal temperature, CO concentration and oxygen concentration in the pulverized coal bin, the safety protection device comprises a first inert gas shielding station communicating with the pulverized coal bin roof, and a second inert gas shielding station communicating with the pulverized coal bin bottom, and the safety protection device is used for cooling and stabilizing the pulverized coal bin and is started or stopped according to detection signals of the safety detection device. The invention further provides a safety pulverized coal management method utilizing the pulverized coal warehousing system, the functions of the multiple pulverized coal bins at the same time are different, alternated function conversion is conducted along with time, and the pulverized coal storage and transportation safety and production continuity are improved.