The invention discloses a device for cleaning and exchanging heat of raw coal gas of a lower gas collection pipe of an oven column shell boiler of a coke oven and application. Oven columns are located on two sides of a combustion chamber adjacent to a carbonization chamber and are used for protecting transverse thermal expansion of a coke oven body and supporting gas collection pipes. According to the device, the oven columns are designed into rectangular column shells, namely boiler shells, without changing the functions of the oven columns, multiple rows of folded snake-shaped tube bundle oven pipes are arranged in the oven columns, and the gas collection pipes are moved downwards beside the lower sides of oven column shells. Raw coal gas flows through the oven column shell boiler and flows downwards outside the pipes (shell side); boiler feed water is introduced from the lower sides of the oven column shells and flows upwards in the pipes (shell side), the raw coal gas and the boiler feed water generate countercurrent septate heat transfer, and meanwhile, washing liquid is sprayed into the boiler shells, so that tar and dust deposited on the surfaces of the oven pipes are eliminated; and the raw coal gas is cooled and condensed, and meanwhile, superheated steam is produced.