Long-lived fluorescent lamp

The utility model relates to a long-lived fluorescent lamp. The fluorescent lamp comprises a sealed lamp tube, two electrodes, two conducting wires, and two core columns, wherein, mercury and inert gases are filled in the lamp tube; a fluorescent powder emitting layer is arranged on the inner wall of the lamp tube; the electrodes are arranged in two ends of the lamp tube; the conducting wires are connected to the electrodes; the core columns are in sealed connection to two ends of the lamp tube; each electrode adopts a filament coated with electron powder; and the conducting wires penetrate the core columns. The fluorescent lamp is characterized in that two metal protecting hoods are arranged in front of the electrodes respectively and are fixed on slender metal supports; and the metal supports are welded onto a conducting wire. The utility model has the advantages of long service life and the like.