The utility model discloses a device for reducing tar generation for a reverse combustion coal-fired furnace, which comprises an induced air path, an air inlet of the induced air path is communicatedwith a fresh air source, and an air outlet of the induced air path is positioned at the top of a coal storage bunker; the coal bunker further comprises an air guide path, an air inlet of the air guidepath is located in the top of the coal bunker body, and an air outlet of the air guide path is located in the bottom of the coal bunker body. Thus, fresh air from a fresh air source reaches the top of the coal storage bunker and then is mixed with smoke, and the mixed air enters the bottom of the coal storage bunker along the air guide air path, so that the smoke at the bottom of the coal storagebunker is combusted more sufficiently, smoke gathering of the coal storage bunker is reduced, and generation of tar in the coal storage bunker is reduced. The utility model further discloses a reverse combustion coal-fired furnace comprising the tar generation reducing device, and the reverse combustion coal-fired furnace has corresponding advantages.