Abstract: A multifunctional portable fire extinguisher system comprising: a multifunctional portable fire extinguisher with a handgun configuration that sprays fire-extinguishing liquid stored therein through a spraying portion to the outside in accordance with the actuation of a trigger; and a multifunctional portable fire extinguisher case including a housing for housing the multifunctional portable fire extinguisher and a protective cover for protecting the multifunctional portable fire extinguisher housed in the housing. The housing of the multifunctional portable fire extinguisher case includes: a first sensor unit for detecting the temperature, gas, smoke, and power failure, and for generating first detection data; and a first short range wireless communication unit for performing short range wireless communication with the multifunctional portable fire extinguisher.