A exhaust purification device for diesel generator

The utility model discloses an exhaust purification device for diesel generator, including casing, oxidation catalysis ware, grain catcher, urea reaction system, deNOx?systems, the casing both ends are air inlet, gas outlet respectively, oxidation catalysis ware, granule trapping system, urea reaction system, deNOx?systems follow respectively the air inlet direction sets gradually intracavity in the casing, the oxidation catalysis ware includes carrier and catalyst, the catalysis type half STREAMING grain catcher that the granule trapping system was made for iron twine aluminium gold silk screen. Through the improvement to grain catcher, realize great ability and collected the function of contamination particle thing, realize catching on a large scale when making the particulate matter pass through to strengthened the dwell time and the area of contact of particulate matter, solved since particulate pollution entrapment effect not the trap of good initiation block up the problem and the follow -up improvement