The invention provides a flame-adjustable drainage flame-proof safe alcohol lamp. The flame-adjustable drainage flame-proof safe alcohol lamp comprises a flow draining block and a flame-adjusting cap. The lower end part of the flow draining block is provided with a main draining channel. The upper end part of the flow draining block is provided with a lamp core channel. A radial auxiliary draining channel is arranged annular around the flow draining block and communicates with the main draining channel. The diameter of a lamp core is smaller than that of the lamp core. The side wall of a lamp nozzle is in threaded connection and matched with the flame-adjusting cap. The top of the flame-adjusting cap is hinged onto two semi-circular flame-adjusting doors. The flame-adjustable drainage flame-proof safe alcohol lamp has the following beneficial effects: the auxiliary draining channel has the effect of storing alcohol rushing into the end part of the lamp core channel in a flow-splitting manner; therefore, the impact on the end part of the lamp core channel is reduced and the flow amount of alcohol within the unit time is also reduced, thereby reserving sufficient time for subsequent treatment; the arrangement of the flame-adjusting cap can fulfill the purpose of adjusting flames can serve the purpose of adjusting flames; when flames are put out, the lamp core is accommodated into the flame-adjusting cap; by rotating the flame-adjusting doors, the top space of the lamp nozzle is enclosed; flames are naturally put out due to the oxygen deficit; and therefore the purpose of safely putting out flames is fulfilled.