The invention relates to an extractor hood, in particular to a top surrounding type extractor hood. The top surrounding type extractor hood mainly comprises a shell, multiple lampblack separating plates and multiple fans, wherein the shell comprises a discharge flue, two baffles, two back plates and two side walls, the two back plates are perpendicularly arranged outside two opposite walls of the discharge flue respectively, the baffles are arranged on the back plates, the end, adjacent to the discharge flue, of each baffle is in tangential connection with the corresponding back plate, an inward concave arc is formed in each baffle towards the back side of the corresponding back plate in the opening direction of the discharge flue, each side wall is perpendicularly arranged at the end, away from the discharge flue, of the corresponding back plate and points at the opening side of the discharge flue, the lampblack separating plates are arranged on the opening portion of the discharge flue on the inner side of the shell, on the inner side of each back plate and on the inner side of each side wall respectively, the fans are arranged on the inner side of the discharge flue and the inner side of each side wall, and the lampblack separating plates are made of an aluminum alloy material. The top surrounding type extractor hood is high in lampblack extraction rate and good in air purifying effect.