With a semiclassical polymerization in the loop quantum gravity (LQG), the
interior of Schwarzschild black holes provides a captivating single-horizon
regular black hole spacetime. The shortage of rotating black hole models in
loop quantum gravity (LQG) substantially restrains the progress of testing LQG
from observations. Motivated by this, starting with a spherical LQG black hole
as a seed metric, we construct a rotating spacetime using the revised
Newman-Janis algorithm, namely, the LQG-motivated rotating black holes (LMRBH),
which encompasses Kerr ($l=0$) black holes as an exceptional case. We discover
that for any random $l>0$, unlike Kerr black hole, an extremal LMRBH refers to
a black hole with angular momentum $a>M$. The rotating metric, in parameter
space, describes (1) black holes with an event and Cauchy horizons, (2) black
holes with three horizons, (3) black holes with only one horizon or (4) no
horizon spacetime. We also discuss the horizon and global structure of the
LMRBH spacetimes and its dependence on $l/M$ that exhibits rich spacetime
structures in the ($M,\;a,\;l$) parameter space.
