An exhaust-gas muffler includes a muffler housing (2) having an inlet
opening
(3) and an outlet (4). The exhaust-gas muffler is especially for
the internal combustion engine in a portable handheld work apparatus. At least
one attenuating space (5, 5, 5") is configured in the exhaust-gas
muffler (1). The exhaust-gas muffler (1) includes at least one resonance
pipe (6) to increase power and to reduce the hydrocarbon emissions. The
resonance pipe (6) is fluidly connected to the inlet opening (3)
and the resonance pipe leads to a backflow of exhaust gases into the combustion
chamber (22). For a simple manufacture, it is provided that the exhaust-gas
muffler (1) includes lower and upper half shells (8, 7) via which
the resonance pipe (6) is at least partially delimited.