A gas-analyzing system for analyzing a gas component, including an analyzing apparatus which comprises: a collecting nozzle configured to collect a to-be-analyzed gas; a liquid collecting unit configured to collect a liquid component contained in the to-be-analyzed gas collected by the collecting nozzle and to allow the to-be-analyzed gas to pass therethrough, wherein the liquid collecting unit includes a separating and collecting unit configured to separate the liquid component contained in the to-be-analyzed gas and to allow the to-be-analyzed gas to pass therethrough, and wherein the collecting nozzle has an injection opening configured to inject the to-be-analyzed gas toward the liquid collecting unit; a liquid discharging unit including a discharge pipe configured to discharge the liquid component collected by the liquid collecting unit; and an analyzing unit configured to analyze a gas component of the to-be-analyzed gas that has passed through the liquid collecting unit; wherein the gas-analyzing system further includes a flue; characterized in that the separating and collecting unit includes a separating plate opposing the injection opening of the collecting nozzle, wherein the separating plate includes a plate-like portion positioned so as to oppose the injection opening and a gas flow hole surrounding the plate-like portion; the liquid collecting unit further includes a collecting case enclosing therein the separating and collecting unit and the injection opening of the collecting nozzle, wherein the discharge pipe is configured to discharge the liquid component outside the collecting case; and wherein the collecting nozzle of the analyzing apparatus is configured to collect the to-be-analyzed gas passing through the flue, and wherein the discharge pipe of the analyzing apparatus is configured to discharge the liquid component into the flue. a collecting nozzle configured to collect a to-be-analyzed gas; a liquid collecting unit configured to collect a liquid component contained in the to-be-analyzed gas collected by the collecting nozzle and to allow the to-be-analyzed gas to pass therethrough, wherein the liquid collecting unit includes a separating and collecting unit configured to separate the liquid component contained in the to-be-analyzed gas and to allow the to-be-analyzed gas to pass therethrough, and wherein the collecting nozzle has an injection opening configured to inject the to-be-analyzed gas toward the liquid collecting unit; a liquid discharging unit including a discharge pipe configured to discharge the liquid component collected by the liquid collecting unit; and an analyzing unit configured to analyze a gas component of the to-be-analyzed gas that has passed through the liquid collecting unit; wherein the gas-analyzing system further includes a flue; the separating and collecting unit includes a separating plate opposing the injection opening of the collecting nozzle, wherein the separating plate includes a plate-like portion positioned so as to oppose the injection opening and a gas flow hole surrounding the plate-like portion; the liquid collecting unit further includes a collecting case enclosing therein the separating and collecting unit and the injection opening of the collecting nozzle, wherein the discharge pipe is configured to discharge the liquid component outside the collecting case; and wherein the collecting nozzle of the analyzing apparatus is configured to collect the to-be-analyzed gas passing through the flue, and wherein the discharge pipe of the analyzing apparatus is configured to discharge the liquid component into the flue.