The invention discloses an upper exhaust range hood for forcedly exhausting combustion waste gas, and belongs to the technical field of range hoods. The upper exhaust range hood comprises a lampblack discharge device, and a waste gas collecting device positioned above a combustor; the lampblack discharge device includes a smoke collecting cavity, an air box mounted above the smoke collecting cavity, a fan system mounted in the air box, and an exhaust port module mounted in a top port of the air box; the smoke collecting cavity, the air box and the exhaust port module can form a continuous air way; the waste gas collecting device is a cavity structure with a combustion waste gas exhaust cavity port and at least formed by connecting an inner ring wall, an outer wall, a top wall and a bottom wall; combustion waste gas inlets are spaced in the inner ring wall; and the cavity port is communicated with the smoke collecting cavity. The combustion waste gas is sucked in the combustion waste gas inlets to enter the cavity of the waste gas collecting device before dispersing to the kitchen environment, and is finally exhausted outdoors after exhausting by the exhaust cavity port in a concentrated manner, so that the zero dispersion of the combustion waste gas is realized, and the kitchen air quality is improved; and through fire gathering heat collection and thermal radiation isolation, the heat efficiency is improved, and the kitchen temperature is lowered.