The invention discloses a long ring steamer hot blast stove. The long ring steamer hot blast stove comprises a main box body, a fan cavity and a combustion cavity. The main box body comprises a first box body and a second box body, both are arranged together. The inside of the first box body is provided with the combustion cavity. The inside of the second box body is provided with the fan cavity. The combustion cavity is communicated with the fan cavity. A burner is installed above the combustion cavity of the first box body. A fan is installed at the entrance of the fan cavity. The outer side of the second box body is further provided with a fan motor. The fan motor is connected with the fan through a fan drive shaft. In the above-mentioned way, the long ring steamer hot blast stove has the advantages of being compact in structure; reducing the floor space; transporting fan airflow orderly and stably; avoiding the phenomenon of excessive transportation of the fan airflow; ensuring the safe and stable combustion of natural gas inside the combustion cavity; improving the utilization rate and combustion efficiency of the natural gas; protecting the operator's personal safety.