The invention discloses an indoor
machine of a two-tubular air conditioner, which comprises a housing, a left and a right tubular fan wheels, a
heat exchanger, an air inlet and an air outlet, wherein the housing consists of a
front panel assembly and a shell; the left and the right tubular fan wheels are vertically arranged in the housing; the
heat exchanger is arranged in the housing and positioned at the rear side of the tubular fan wheels; the air inlet is arranged behind the housing and the air outlet is arranged in front of the housing; the shell is connected to the rear side of the
front panel assembly, the inner side of the shell is provided with a box body corresponding to the
heat exchanger; back parts of the box body and the shell protrude outwards, the protruding part of the box body is provided with the air inlet, and the protruding part of the shell is provided with an air inlet window corresponding to the air inlet; the heat exchanger is bent towards the protruding direction of the back of the box body and arranged at a position close to the air inlet; and the housing is also internally provided with a
volute assembly positioned between the two tubular fan wheels, the
volute assembly comprises a left
volute, a right volute, and a connecting bulge for connecting the left volute and the right volute together, and the connecting bulge extends to the position close to the heat exchanger. The invention has the advantages of larger air inlet area, compact assembly, low cost, small
noise and
high heat exchange efficiency.