Exhaust purification device of internal combustion engine

An exhaust purification device exhaust purification device in an internal combustion engine having an exhaust purification catalyst arranged in an engine exhaust passage and having soluble organic fractions of particulate contained in exhaust gas adsorbed and deposited on the catalyst when a temperature of the catalyst is lower than a lower limit temperature of combustion of the soluble organic fractions. Judging means is provided for judging if white smoke might be produced by the soluble organic fractions adsorbed on the catalyst, and exhaust air control means is provided for increasing the amount of exhaust air exhausted from the engine when it is judged that white smoke might be produced.