The invention provides a first-aid kit, and relates to the technical field of first-aid kits, the first-aid kit comprises a kit body, a plurality of accommodating cavities, two side support brackets, a blast bag, a pipeline
system and a
mask system, bracket stress interlayers are arranged on the outer sides of the two opposite accommodating cavities, an elastic reset plate is preset on the kit body between the two bracket stress interlayers, the pipeline
system is mounted on the blast bag, and the
mask system is mounted on the blast bag. A plurality of hook-and-loop
fastener hook faces adhere to the outer side of the blast bag, a hook-and-loop
fastener rough face is arranged on the inner side of the bag body, the
mask system is communicated with the pipeline system, the pipeline system comprises a linkage valve device and a corrugated
pipe, the linkage valve device comprises a linkage valve body, an air outlet
pipe, a one-way valve and a
fracture type sealer, the linkage valve body is installed on the blast bag, the air outlet
pipe is installed on the linkage valve body, and the corrugated pipe is installed on the corrugated pipe. The one-way valve is installed on the linkage valve body, the
fracture type sealer is installed on the linkage valve body and seals the one-way valve, the corrugated pipe is installed on the air outlet pipe, the corrugated pipe is communicated with the mask system, and the
artificial respiration function is achieved.