A new type filter cartridge dust collector with conical structure was studied with cost benefit method, and its economic analysis model established. On this basis, the structural parameters that affect the economic performance of the dust collector, such as the pleat number of filter cartridge and conical structure (N2 and N1), conical height (h1), cone radius and pleat height of the conical structure (r and h2) were analyzed, and their influential trend and significance on the economic benefit cost ratio (EBCR) of the new filter cartridge also analyzed using response surface methodology on Minitab software code platform. Two polynomial prediction models of influential factors were obtained, and then the structural parameters optimized. The results show that the influential conspicuousness of the above structural parameters on EBCR is N1 > N2 > h2 > h1, and the effect of r can be negligible. In addition, within the ranges of parameters in this study, the optimal values of structural parameters are N1=264, N2=350, h1=0.8 m, and h2=0.05 m, respectively, and the maximum value of EBCR is 33.25%.