<p>An exhaust treatment apparatus includes a supply passage 8 in parallel with and beneath an exhaust passage 4; a heat releasing port 13 opened in an upstream side in the exhaust passage 4 from the oxidation catalyst and in a downstream side in the combustible gas supplying passage 8. The exhaust passage 4 and the supply passage 8 communicating with each other through the heat releasing port 13. An ignition apparatus 10 is disposed beneath the heat releasing port 13. The combustion heat of combustible gas 2 is supplied to the exhaust passage 4 to raise the temperature of exhaust 6 in the exhaust passage 4. A flame holding plate 42 is provided beneath the heat releasing port 13 in a downstream side in the combustible gas supplying passage 8 from the ignition apparatus 10. An exhaust guiding plate 46 is provided at the top portion of the flame holding plate 42, the exhaust guiding plate 46 is bent to form an upward slope toward a downstream side in the exhaust passage 4, and the exhaust guiding plate 46 covers the ignition apparatus 10 diagonally from above.</p>
