The invention relates to a dry-type slag-conveying device comprising a slag-bearing box body, a slag-conveying device and a fine ash removing device, wherein the slag-bearing box body consists of a slag collecting section and a slag lifting section which is connected with the slag collecting section and is positioned above the slag collection section; one connected end of the slag lifting sectionand the slag collecting section is provided with a coarse slag outlet; at least any of the two ends of the slag lifting section is provided with a fine ash outlet; and the fine ash removing device moves towards the direction of at least one fine ash outlet. The dry-type slag-conveying device effectively avoids the problem of the residual fine ash in the lifting section in the process of discharging the fine ash carried by the slag removing device through the slag lifting section, simultaneously also reduces the whole conveying load of the equipment and saves energy.