Energy-saving exhaust purifying device for diesel engine

The utility model discloses an energy-saving and exhaust purification device of diesel engine, the technical proposal of which is that a continuous heating device for heating the diesel fuel flowing through the pipeline before the diesel fuel entering the oil injection gun, is arranged in the high pressure oil pipeline between the oil injection gun of diesel engine and the oil pipe joint of the oil injection pump. The heating device is directly connected with the oil injection gun, and the key point is that the heating device is composed of electric heater coil enwound on the heating pipe core and a cross and square communication part used for diesel fuel flowing in the heating pipe core. The utility model is easy to implement, as well the utility model can effectively heat the diesel fuel, enhance the combustion quality of diesel fuel, reduce the harmful gas in coking and exhaust of the combustion chamber of the engine, prolong the service life of the engine, and also solve the problem that the diesel is difficult to start and run in winter with low temperature.