To provide a purification method and equipment to purify contaminat ed soil and contaminated waste effectively.

This purification method of contaminated soil and waste is featured as follows. In a purification method to that and decompose a chlorinated organic compound, a pollutant source with electromagnetic wave irradiation, a kiln wherein an electromagnetic irradiation means is provided is used to irradiate electromagnetic waves to such contaminated waste. The waste is rotated inside the kiln to be induction-heated and decomposed so that the chlorinated organic compound is decomposed. Then the evaporating chlorine-based gas is induced outside the kiln so that it can be collected by an absorption medium and removed outside the system.