The invention relates to high-precision smoke dewhitening equipment with high heat conduction efficiency. The high-precision smoke dewhitening equipment comprises a condensing chamber, a water conveying pipe, an evaporation chamber and a heat exchanger and further comprises an adjusting mechanism and a heat conduction mechanism, wherein the adjusting mechanism comprises a power component, a firstlifting ring, a second lifting ring, a stretching and contracting rack, a second transmission rod, a first transmission rod, two first moving sleeve pipes, two second moving sleeve pipes, two transmission components, at least two first baffles and at least two second baffles, and the heat conduction mechanism comprises a first heat conduction pipe, a second heat conduction pipe and a circulating pump. According to the high-precision smoke dewhitening equipment with the high heat conduction efficiency, adjustment of the area of the overlapping parts between the first baffles and the second baffles is realized through the adjusting mechanism, the time for smoke staying in the condensing chamber is prolonged, the condensing effect of the condensing chamber is improved, and the dewhitening effect of a smoke dewhitening device is improved; and partial heat in the smoke can be conducted into the evaporation chamber through the heat conduction mechanism, and the energy-saving effect of the smoke dewhitening device is improved.