Isolation feeding device of power generation furnace

The invention discloses an isolation feeding device of a power generation furnace. The isolation feeding device structurally comprises a supporting plate, an isolation feeding device body, a box and awater tank. According to the isolation feeding device, pull plates rotate to drive a connecting ring shaft to rotate; the connecting ring shaft rotates to drive a bidirectional inner gear shaft to rotate to drive two half-moon arc plates to close and conduct charging; thus, when solid biomass needs to be charged, the half-moon arc plates are closed first so as not to let flames out, and then thepull plates are closed and the half-moon arc plates are opened for biomass charging to ensure that the internal flames cannot escape out due to aerotaxis and cannot ignite the charged solid biomass and burn working staff when the solid biomass is charged. The charged solid biomass is conveyed into a tapered frustum, and the tapered frustum is made to rotate to trigger balls in ball tubes to fly out and rotate to shoot down