The invention discloses an energy-saving flame-isolating method zinc removing process, which comprises: producing green pellets or green blocks by using a zinc-containing material; distributing the green pellets or green blocks into a bottom rotation furnace with a built-in flame-isolating structure, and carrying out reduction and zinc separation; and recovering the zinc-containing dust in the bottom rotation furnace to obtain crude zinc powder. According to the energy-saving flame-isolating method zinc removing process, the novel bottom rotation furnace with the built-in flame-isolating structure is used, wherein the large amount of high temperature flue gas generated due to the burning for supplying the zinc removing heat and the temperature and the small amount of the zinc-containing flue dust generated due to the reduction of the green pellets or green blocks are separated through the flame isolating structure, such that the clogging of the channel containing the large amount of the high temperature flue gas can be avoided; the low-gas-content and high-zinc-content high temperature flue dust in the lower chamber is directly collected by the efficient dust collection device, such that the mixing of the impurity into the zinc-containing flue dust through the large flue gas amount can be avoided while the high added value crude zinc powder can be obtained; and the burning chamber uses the heat storage type burning nozzle so as to achieve the energy source saving purpose.