The utility model relates to biomass pyrolysis gasification devices, in particular to a biomass pyrolysis vinegar cooling and collecting device which comprises vinegar separating condensers. The biomass pyrolysis vinegar cooling and collecting device is characterized in that funnel-shaped flow collectors (7) are mounted at bottoms of the vinegar separating condensers, a vinegar collector (8) is connected to an outlet of each funnel-shaped flow collector (7), and a vinegar outlet (9) is arranged on each vinegar collector (8). An existing vinegar collecting device (see also from the first patent of the background technology) is modified, water is still used as sealing liquid at the bottoms of the condensers, but is no longer used for collecting cold vinegar and is only used for preventing explosion, accordingly, the shortcoming of low concentration of vinegar produced when original vinegar production equipment just starts to produce the vinegar is overcome, the biomass pyrolysis vinegar cooling and collecting device has the advantages of simple structure, capability of preventing explosion, good sealing performance, convenience in maintenance and the like, the density (in the unit of g/cm<3>) of reed vinegar is increased to 1.005 from the original 1.001 when reed vinegar production is just started, the density of the produced vinegar is stable, and application to follow-up agricultural production is facilitated.