The invention provides a two-cavity flame-proof alcohol lamp. The two-cavity flame-proof alcohol lamp comprises a lamp body, a lamp nozzle and a lamp core. The lamp body comprises a hollow cavity for holding alcohol. The lamp nozzle is in threaded connection and fixed at the top of the lamp body. A through hole is arranged in the lamp nozzle and penetrates through the lamp core. The annular side wall at the upper part is provided with multiple guide holes. The outside of the lamp body is provided with a temporary storage cavity used for wrapping the lamp body. A guiding-out hole is arranged in the bottom of the temporary storage cavity and matched with a block. The two-cavity flame-proof alcohol lamp has the following beneficial effects: when the two-cavity flame-proof alcohol lamp is accidentally knocked over, alcohol flows out of a bottle mouth and most alcohol flows into the temporary storage cavity through the guide holes; only a little alcohol flows into the bottle mouth; through a gap between the through hole of the lamp nozzle and the lamp core, alcohol seeps out of the lamp body, thereby greatly reducing the leakage mount of alcohol and reserving sufficient time for subsequent treatment; burning accidents are avoided due to the large-area spillover of alcohol in short time; and an effective guarantee is provided for safety of operators and equipment.