Falling film diesel fan heater

The utility model provides a falling film diesel fan heater. The falling film diesel fan heater comprises a machine body. A combustion-supporting fan, a falling film oil pan and a combustion chamber are sequentially installed in the machine body from front to back, the combustion-supporting fan is aligned with the combustion chamber, the falling film oil pan is installed at the air inlet end of the combustion chamber, a feeding port is formed in the upper end of the falling film oil pan and connected with a high-level oil tank, a discharging port is formed in the falling film oil pan, and the high-level oil tank is connected with the discharging port. According to the utility model, the combustion-supporting fan, the falling film oil pan and the combustion chamber are matched, so that high-efficiency combustion of diesel oil is realized, the energy utilization efficiency and economical efficiency of diesel oil combustion are improved, pollutant emission is reduced, and the problems of coking and carbon deposi